CVE-2026-20122

Cisco Catalyst SD-WAN Manager Arbitrary File Overwrite Vulnerability

Published Feb 25, 2026 CVSS 3.1 · 5.4 Medium EPSS 25.8% KEV · Listed

Description

A vulnerability in the API of Cisco Catalyst SD-WAN Manager could allow an authenticated, remote attacker to overwrite arbitrary files on the local file system. To exploit this vulnerability, the attacker must have valid read-only credentials with API access on the affected system.

This vulnerability is due to improper file handling on the API interface of an affected system. An attacker could exploit this vulnerability by uploading a malicious file on the local file system. A successful exploit could allow the attacker to overwrite arbitrary files on the affected system and gain vmanage user privileges.

Analysis

Technical impact

A remote authenticated attacker with read‑only API credentials can upload a malicious file to Cisco Catalyst SD‑WAN Manager. The API improperly handles file names, allowing the attacker to overwrite any file on the local file system. By replacing critical files the attacker can gain vmanage user privileges and compromise system integrity. The flaw is classified as CWE‑648: Unrestricted Write to Arbitrary File.

Affected Systems

Affected products include Cisco Catalyst SD‑WAN Manager, notably version 20.12.6 and potentially earlier releases as indicated by the CPE strings. The vulnerability exists in the API layer that processes file uploads.

Risk and Exploitability

The CVSS v3.1 base score is 5.4, indicating moderate impact, while the EPSS score is 25%, indicating a moderate probability of exploitation in the wild. The vulnerability is listed in the CISA KEV catalog. Exploitation requires remote access to the API with valid, albeit read‑only, credentials, so the attack vector is remote authenticated with limited initial privileges. If successful, the attacker can overwrite arbitrary files and elevate privileges, representing a significant security concern.

Affected Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

Cisco

Cisco Catalyst SD-WAN Manager

unknown

Version	Status	Constraints
`20.1.12`	affected	—
`19.2.1`	affected	—
`18.4.4`	affected	—
`18.4.5`	affected	—
`20.1.1.1`	affected	—
`20.1.1`	affected	—
`19.3.0`	affected	—
`19.2.2`	affected	—
`19.2.099`	affected	—
`18.3.6`	affected	—
`18.3.7`	affected	—
`19.2.0`	affected	—
`18.3.8`	affected	—
`19.0.0`	affected	—
`19.1.0`	affected	—
`18.4.302`	affected	—
`18.4.303`	affected	—
`19.2.097`	affected	—
`19.2.098`	affected	—
`17.2.10`	affected	—
`18.3.6.1`	affected	—
`19.0.1a`	affected	—
`18.2.0`	affected	—
`18.4.3`	affected	—
`18.4.1`	affected	—
`17.2.8`	affected	—
`18.3.3.1`	affected	—
`18.4.0`	affected	—
`18.3.1`	affected	—
`17.2.6`	affected	—
`17.2.9`	affected	—
`18.3.4`	affected	—
`17.2.5`	affected	—
`18.3.1.1`	affected	—
`18.3.5`	affected	—
`18.4.0.1`	affected	—
`18.3.3`	affected	—
`17.2.7`	affected	—
`17.2.4`	affected	—
`18.3.0`	affected	—
`19.2.3`	affected	—
`18.4.501_ES`	affected	—
`20.3.1`	affected	—
`20.1.2`	affected	—
`19.2.929`	affected	—
`19.2.31`	affected	—
`20.3.2`	affected	—
`19.2.32`	affected	—
`20.3.2_925`	affected	—
`20.3.2.1`	affected	—
`20.3.2.1_927`	affected	—
`18.4.6`	affected	—
`20.1.2_937`	affected	—
`20.4.1`	affected	—
`20.3.2_928`	affected	—
`20.3.2_929`	affected	—
`20.4.1.0.1`	affected	—
`20.3.2.1_930`	affected	—
`19.2.4`	affected	—
`20.5.0.1.1`	affected	—
`20.4.1.1`	affected	—
`20.3.3`	affected	—
`19.2.4.0.1`	affected	—
`20.3.2_937`	affected	—
`20.3.3.1`	affected	—
`20.5.1`	affected	—
`20.1.3`	affected	—
`20.3.3.0.4`	affected	—
`20.3.3.1.2`	affected	—
`20.3.3.1.1`	affected	—
`20.4.1.2`	affected	—
`20.3.3.0.2`	affected	—
`20.4.1.1.5`	affected	—
`20.4.1.0.01`	affected	—
`20.4.1.0.02`	affected	—
`20.3.3.1.7`	affected	—
`20.3.3.1.5`	affected	—
`20.5.1.0.1`	affected	—
`20.3.3.1.10`	affected	—
`20.3.3.0.8`	affected	—
`20.4.2`	affected	—
`20.4.2.0.1`	affected	—
`20.3.4`	affected	—
`20.3.3.0.14`	affected	—
`19.2.4.0.8`	affected	—
`19.2.4.0.9`	affected	—
`20.3.4.0.1`	affected	—
`20.3.2.0.5`	affected	—
`20.6.1`	affected	—
`20.5.1.0.2`	affected	—
`20.3.3.0.17`	affected	—
`20.6.1.1`	affected	—
`20.6.0.18.3`	affected	—
`20.3.2.0.6`	affected	—
`20.6.0.18.4`	affected	—
`20.4.2.0.2`	affected	—
`20.3.3.0.16`	affected	—
`20.3.4.0.5`	affected	—
`20.6.1.0.1`	affected	—
`20.3.4.0.6`	affected	—
`20.6.2`	affected	—
`20.7.1EFT2`	affected	—
`20.3.4.0.9`	affected	—
`20.3.4.0.11`	affected	—
`20.4.2.0.4`	affected	—
`20.3.3.0.18`	affected	—
`20.7.1`	affected	—
`20.6.2.1`	affected	—
`20.3.4.1`	affected	—
`20.5.1.1`	affected	—
`20.4.2.1`	affected	—
`20.4.2.1.1`	affected	—
`20.3.4.1.1`	affected	—
`20.3.813`	affected	—
`20.3.4.0.19`	affected	—
`20.4.2.2.1`	affected	—
`20.5.1.2`	affected	—
`20.3.4.2`	affected	—
`20.3.814`	affected	—
`20.4.2.2`	affected	—
`20.6.2.2`	affected	—
`20.3.4.2.1`	affected	—
`20.7.1.1`	affected	—
`20.3.4.1.2`	affected	—
`20.6.2.2.2`	affected	—
`20.3.4.0.20`	affected	—
`20.6.2.2.3`	affected	—
`20.4.2.2.2`	affected	—
`20.3.5`	affected	—
`20.6.2.0.4`	affected	—
`20.4.2.2.3`	affected	—
`20.3.4.0.24`	affected	—
`20.6.2.2.7`	affected	—
`20.6.3`	affected	—
`20.3.4.2.2`	affected	—
`20.4.2.2.4`	affected	—
`20.7.1.0.2`	affected	—
`20.8.1`	affected	—
`20.3.5.0.8`	affected	—
`20.3.5.0.9`	affected	—
`20.4.2.2.8`	affected	—
`20.3.5.0.7`	affected	—
`20.6.3.0.7`	affected	—
`20.6.3.0.5`	affected	—
`20.6.3.0.10`	affected	—
`20.6.3.0.2`	affected	—
`20.7.2`	affected	—
`20.9.1EFT2`	affected	—
`20.6.3.0.11`	affected	—
`20.6.3.1`	affected	—
`20.6.3.0.14`	affected	—
`20.6.4`	affected	—
`20.9.1`	affected	—
`20.6.3.0.19`	affected	—
`20.6.3.0.18`	affected	—
`20.3.6`	affected	—
`20.9.1.1`	affected	—
`20.6.3.0.23`	affected	—
`20.6.4.0.4`	affected	—
`20.6.3.0.25`	affected	—
`20.6.5`	affected	—
`20.6.3.0.27`	affected	—
`20.9.2`	affected	—
`20.9.2.1`	affected	—
`20.6.3.0.29`	affected	—
`20.6.3.0.31`	affected	—
`20.6.3.0.32`	affected	—
`20.10.1`	affected	—
`20.6.3.0.33`	affected	—
`20.9.2.0.01`	affected	—
`20.9.1_LI_Images`	affected	—
`20.10.1_LI_Images`	affected	—
`20.9.2_LI_Images`	affected	—
`20.3.7`	affected	—
`20.9.3`	affected	—
`20.6.5.1`	affected	—
`20.11.1`	affected	—
`20.11.1_LI_Images`	affected	—
`20.9.3_LI_ Images`	affected	—
`20.6.3.1.1`	affected	—
`20.9.3.0.2`	affected	—
`20.6.5.1.2`	affected	—
`20.9.3.0.3`	affected	—
`20.4.2.3`	affected	—
`20.6.3.2`	affected	—
`20.6.4.1`	affected	—
`20.6.3.0.38`	affected	—
`20.6.3.0.39`	affected	—
`20.3.5.1`	affected	—
`20.3.4.3`	affected	—
`20.9.3.1`	affected	—
`20.3.3.2`	affected	—
`20.6.5.2`	affected	—
`20.3.7.1`	affected	—
`20.10.1.1`	affected	—
`20.6.5.2.1`	affected	—
`20.3.4.0.25`	affected	—
`20.6.2.2.4`	affected	—
`20.6.1.2`	affected	—
`20.11.1.1`	affected	—
`20.9.3.0.5`	affected	—
`20.3.4.0.26`	affected	—
`20.6.5.1.3`	affected	—
`20.6.3.0.40`	affected	—
`20.1.3.1`	affected	—
`20.9.2.2`	affected	—
`20.6.5.2.3`	affected	—
`20.6.5.1.4`	affected	—
`20.6.5.3`	affected	—
`20.6.3.0.41`	affected	—
`20.9.3.0.7`	affected	—
`20.6.5.1.5`	affected	—
`20.9.3.0.4`	affected	—
`20.6.4.0.19`	affected	—
`20.6.5.1.6`	affected	—
`20.9.3.0.8`	affected	—
`20.6.3.3`	affected	—
`20.3.7.2`	affected	—
`20.6.5.4`	affected	—
`20.6.5.1.7`	affected	—
`20.9.3.0.12`	affected	—
`20.6.4.2`	affected	—
`20.6.5.5`	affected	—
`20.9.3.2`	affected	—
`20.11.1.2`	affected	—
`20.6.3.4`	affected	—
`20.10.1.2`	affected	—
`20.6.5.1.9`	affected	—
`20.9.3.0.16`	affected	—
`20.6.3.0.45`	affected	—
`20.6.5.1.10`	affected	—
`20.9.3.0.17`	affected	—
`20.6.5.2.4`	affected	—
`20.6.4.0.21`	affected	—
`20.9.3.0.18`	affected	—
`20.6.3.0.46`	affected	—
`20.6.3.0.47`	affected	—
`20.9.2.3`	affected	—
`20.9.3.2_LI_Images`	affected	—
`20.9.3.0.21`	affected	—
`20.9.3.0.20`	affected	—
`20.9.4_LI_Images`	affected	—
`20.9.4`	affected	—
`20.6.5.1.11`	affected	—
`20.12.1`	affected	—
`20.12.1_LI_Images`	affected	—
`20.6.5.1.13`	affected	—
`20.9.3.0.23`	affected	—
`20.6.5.2.8`	affected	—
`20.9.4.1`	affected	—
`20.9.4.1_LI_Images`	affected	—
`20.9.3.0.25`	affected	—
`20.9.3.0.24`	affected	—
`20.6.5.1.14`	affected	—
`20.3.8`	affected	—
`20.6.6`	affected	—
`20.9.3.0.26`	affected	—
`20.6.3.0.51`	affected	—
`20.9.3.0.29`	affected	—
`20.12.2`	affected	—
`20.12.2_LI_Images`	affected	—
`20.6.6.0.1`	affected	—
`20.13.1_LI_Images`	affected	—
`20.9.4.0.4`	affected	—
`20.13.1`	affected	—
`20.9.4.1.1`	affected	—
`20.9.5`	affected	—
`20.9.5_LI_Images`	affected	—
`20.12.3_LI_Images`	affected	—
`20.12.3`	affected	—
`20.9.4.1.3`	affected	—
`20.6.7`	affected	—
`20.9.5.1`	affected	—
`20.9.5.1_LI_Images`	affected	—
`20.9.4.1.6`	affected	—
`20.14.1`	affected	—
`20.14.1_LI_Images`	affected	—
`20.9.5.2`	affected	—
`20.9.5.2.1`	affected	—
`20.9.5.2_LI_Images`	affected	—
`20.12.3.1`	affected	—
`20.12.4`	affected	—
`20.15.1_LI_Images`	affected	—
`20.15.1`	affected	—
`20.9.5.1.4`	affected	—
`20.9.5.2.7`	affected	—
`20.9.5.2.13`	affected	—
`20.9.6`	affected	—
`20.9.6_LI_Images`	affected	—
`20.9.5.2.14`	affected	—
`20.6.8`	affected	—
`20.12.4.0.03`	affected	—
`20.16.1`	affected	—
`20.16.1_LI_Images`	affected	—
`20.12.4_LI_Images`	affected	—
`20.9.5.2.16`	affected	—
`20.12.4.0.4`	affected	—
`20.12.401`	affected	—
`20.9.5.3`	affected	—
`20.9.5.3_LI_Images`	affected	—
`20.12.4.1_LI_Images`	affected	—
`20.12.4.1`	affected	—
`20.9.5.2.21`	affected	—
`20.9.6.0.3`	affected	—
`20.12.4.0.6`	affected	—
`20.15.2_LI_Images`	affected	—
`20.15.2`	affected	—
`20.12.4_Monthly_ES5`	affected	—
`20.12.5`	affected	—
`20.12.5_LI_Images`	affected	—
`20.9.7_LI _Images`	affected	—
`20.9.7`	affected	—
`20.15.3`	affected	—
`20.15.3_ LI _Images`	affected	—
`20.12.501`	affected	—
`20.12.5.1_LI_Images`	affected	—
`20.12.5.1`	affected	—
`20.12.5.2_LI_Images`	affected	—
`20.12.5.2`	affected	—
`20.15.3.1`	affected	—
`20.15.4_LI_Images`	affected	—
`20.15.4`	affected	—
`20.9.7.1_LI _Images`	affected	—
`20.9.7.1`	affected	—
`20.18.1`	affected	—
`20.18.1_LI_Images`	affected	—
`20.12.6_LI_Images`	affected	—
`20.12.6`	affected	—
`20.12.5.1.01`	affected	—
`20.9.8`	affected	—
`20.9.8_LI_Images`	affected	—
`20.18.2`	affected	—
`20.15.4.1_LI_Images`	affected	—
`20.15.4.1`	affected	—
`20.18.2_LI_Images`	affected	—

Configuration 1 [-]

OR	cpe:2.3:a:cisco:catalyst_sd-wan_manager::::::::
	cpe:2.3:a:cisco:catalyst_sd-wan_manager::::::::
	cpe:2.3:a:cisco:catalyst_sd-wan_manager::::::::
	cpe:2.3:a:cisco:catalyst_sd-wan_manager::::::::
	cpe:2.3:a:cisco:catalyst_sd-wan_manager:20.12.6:::::::*

No data.

Vendor Product Versions

Cisco

Catalyst Sd-wan Manager

Version	Status	Scheme	Platform
`20.1.12`	affected	semver	—
`19.2.1`	affected	semver	—
`18.4.4`	affected	semver	—
`18.4.5`	affected	semver	—
`20.1.1.1`	affected	semver	—
`20.1.1`	affected	semver	—
`19.3.0`	affected	semver	—
`19.2.2`	affected	semver	—
`19.2.099`	affected	semver	—
`18.3.6`	affected	generic	—
`18.3.7`	affected	generic	—
`19.2.0`	affected	semver	—
`18.3.8`	affected	generic	—
`19.0.0`	affected	semver	—
`19.1.0`	affected	semver	—
`18.4.302`	affected	generic	—
`18.4.303`	affected	generic	—
`19.2.097`	affected	semver	—
`19.2.098`	affected	semver	—
`17.2.10`	affected	semver	—
`18.3.6.1`	affected	generic	—
`19.0.1a`	affected	semver	—
`18.2.0`	affected	semver	—
`18.4.3`	affected	generic	—
`18.4.1`	affected	generic	—
`17.2.8`	affected	semver	—
`18.3.3.1`	affected	generic	—
`18.4.0`	affected	generic	—
`18.3.1`	affected	generic	—
`17.2.6`	affected	semver	—
`17.2.9`	affected	semver	—
`18.3.4`	affected	generic	—
`17.2.5`	affected	semver	—
`18.3.1.1`	affected	generic	—
`18.3.5`	affected	generic	—
`18.4.0.1`	affected	generic	—
`18.3.3`	affected	generic	—
`17.2.7`	affected	semver	—
`17.2.4`	affected	semver	—
`18.3.0`	affected	generic	—
`19.2.3`	affected	semver	—
`18.4.501_ES`	affected	generic	—
`20.3.1`	affected	semver	—
`20.1.2`	affected	semver	—
`19.2.929`	affected	semver	—
`19.2.31`	affected	semver	—
`20.3.2`	affected	semver	—
`19.2.32`	affected	semver	—
`20.3.2_925`	affected	generic	—
`20.3.2.1`	affected	generic	—
`20.3.2.1_927`	affected	generic	—
`18.4.6`	affected	generic	—
`20.1.2_937`	affected	generic	—
`20.4.1`	affected	semver	—
`20.3.2_928`	affected	generic	—
`20.3.2_929`	affected	generic	—
`20.4.1.0.1`	affected	generic	—
`20.3.2.1_930`	affected	generic	—
`19.2.4`	affected	semver	—
`20.5.0.1.1`	affected	semver	—
`20.4.1.1`	affected	generic	—
`20.3.3`	affected	semver	—
`19.2.4.0.1`	affected	semver	—
`20.3.2_937`	affected	generic	—
`20.3.3.1`	affected	generic	—
`20.5.1`	affected	semver	—
`20.1.3`	affected	semver	—
`20.3.3.0.4`	affected	generic	—
`20.3.3.1.2`	affected	generic	—
`20.3.3.1.1`	affected	generic	—
`20.4.1.2`	affected	generic	—
`20.3.3.0.2`	affected	generic	—
`20.4.1.1.5`	affected	generic	—
`20.4.1.0.01`	affected	generic	—
`20.4.1.0.02`	affected	generic	—
`20.3.3.1.7`	affected	generic	—
`20.3.3.1.5`	affected	generic	—
`20.5.1.0.1`	affected	generic	—
`20.3.3.1.10`	affected	generic	—
`20.3.3.0.8`	affected	generic	—
`20.4.2`	affected	generic	—
`20.4.2.0.1`	affected	generic	—
`20.3.4`	affected	generic	—
`20.3.3.0.14`	affected	generic	—
`19.2.4.0.8`	affected	generic	—
`19.2.4.0.9`	affected	generic	—
`20.3.4.0.1`	affected	generic	—
`20.3.2.0.5`	affected	generic	—
`20.6.1`	affected	semver	—
`20.5.1.0.2`	affected	semver	—
`20.3.3.0.17`	affected	generic	—
`20.6.1.1`	affected	semver	—
`20.6.0.18.3`	affected	generic	—
`20.3.2.0.6`	affected	generic	—
`20.6.0.18.4`	affected	generic	—
`20.4.2.0.2`	affected	generic	—
`20.3.3.0.16`	affected	generic	—
`20.3.4.0.5`	affected	generic	—
`20.6.1.0.1`	affected	semver	—
`20.3.4.0.6`	affected	generic	—
`20.6.2`	affected	generic	—
`20.7.1EFT2`	affected	generic	—
`20.3.4.0.9`	affected	generic	—
`20.3.4.0.11`	affected	generic	—
`20.4.2.0.4`	affected	generic	—
`20.3.3.0.18`	affected	generic	—
`20.7.1`	affected	generic	—
`20.6.2.1`	affected	generic	—
`20.3.4.1`	affected	generic	—
`20.5.1.1`	affected	semver	—
`20.4.2.1`	affected	generic	—
`20.4.2.1.1`	affected	generic	—
`20.3.4.1.1`	affected	generic	—
`20.3.813`	affected	generic	—
`20.3.4.0.19`	affected	generic	—
`20.4.2.2.1`	affected	generic	—
`20.5.1.2`	affected	generic	—
`20.3.4.2`	affected	generic	—
`20.3.814`	affected	generic	—
`20.4.2.2`	affected	generic	—
`20.6.2.2`	affected	generic	—
`20.3.4.2.1`	affected	generic	—
`20.7.1.1`	affected	generic	—
`20.3.4.1.2`	affected	generic	—
`20.6.2.2.2`	affected	generic	—
`20.3.4.0.20`	affected	generic	—
`20.6.2.2.3`	affected	generic	—
`20.4.2.2.2`	affected	generic	—
`20.3.5`	affected	generic	—
`20.6.3`	affected	generic	—
`20.3.6`	affected	generic	—
`20.9.1`	affected	generic	—
`20.6.3.0.7`	affected	generic	—
`20.6.3.0.5`	affected	generic	—
`20.6.3.0.10`	affected	generic	—
`20.6.3.0.2`	affected	generic	—
`20.7.2`	affected	generic	—
`20.9.1EFT2`	affected	generic	—
`20.6.3.0.11`	affected	generic	—
`20.6.3.1`	affected	generic	—
`20.6.3.0.14`	affected	generic	—
`20.6.4`	affected	generic	—
`20.9.1`	affected	generic	—
`20.6.3.0.19`	affected	generic	—
`20.6.3.0.18`	affected	generic	—
`20.3.7`	affected	generic	—
`20.9.3`	affected	generic	—
`20.6.5`	affected	generic	—
`20.11.1`	affected	generic	—
`20.9.3`	affected	generic	—
`20.6.3.1.1`	affected	generic	—
`20.9.3.0.2`	affected	generic	—
`20.6.5.1`	affected	generic	—
`20.6.5.1.2`	affected	generic	—
`20.9.3.0.3`	affected	generic	—
`20.4.2.3`	affected	generic	—
`20.6.3.2`	affected	generic	—
`20.6.4.1`	affected	generic	—
`20.6.3.0.38`	affected	generic	—
`20.6.3.0.39`	affected	generic	—
`20.3.5.1`	affected	generic	—
`20.3.4.3`	affected	generic	—
`20.9.3.1`	affected	generic	—
`20.3.3.2`	affected	generic	—
`20.6.5.2`	affected	generic	—
`20.3.7.1`	affected	generic	—
`20.10.1`	affected	generic	—
`20.6.5.2.1`	affected	generic	—
`20.3.4.0.25`	affected	generic	—
`20.6.2.2.4`	affected	generic	—
`20.6.1.2`	affected	generic	—
`20.11.1.1`	affected	generic	—
`20.9.3.0.5`	affected	generic	—
`20.3.4.0.26`	affected	generic	—
`20.6.5.1.3`	affected	generic	—
`20.6.3.0.40`	affected	generic	—
`20.1.3.1`	affected	generic	—
`20.9.2.2`	affected	generic	—
`20.6.5.2.3`	affected	generic	—
`20.6.5.1.4`	affected	generic	—
`20.6.5.3`	affected	generic	—
`20.6.3.0.41`	affected	generic	—
`20.9.3.0.7`	affected	generic	—
`20.6.5.1.5`	affected	generic	—
`20.9.3.04`	affected	generic	—
`20.6.4.0.19`	affected	generic	—
`20.6.5.1.6`	affected	generic	—
`20.9.3.0.8`	affected	generic	—
`20.6.3.3`	affected	generic	—
`20.3.7.2`	affected	generic	—
`20.6.5.4`	affected	generic	—
`20.6.5.1.7`	affected	generic	—
`20.9.3.0.12`	affected	generic	—
`20.6.4.2`	affected	generic	—
`20.6.5.5`	affected	generic	—
`20.9.3.2`	affected	generic	—
`20.11.1.2`	affected	generic	—
`20.6.3.4`	affected	generic	—
`20.10.1.2`	affected	generic	—
`20.6.5.1.9`	affected	generic	—
`20.9.3.0.16`	affected	generic	—
`20.6.3.0.45`	affected	generic	—
`20.6.5.1.10`	affected	generic	—
`20.9.3.0.17`	affected	generic	—
`20.6.5.2.4`	affected	generic	—
`20.6.4.0.21`	affected	generic	—
`20.9.3.0.18`	affected	generic	—
`20.6.3.0.46`	affected	generic	—
`20.6.3.0.`	affected	generic	—
`20.9.2.3`	affected	generic	—
`20.9.3.2_LI_Images`	affected	generic	—
`20.9.3.0.21`	affected	generic	—
`20.9.3.0.20`	affected	generic	—
`20.9.4_LI_Images`	affected	generic	—
`20.9.4`	affected	generic	—
`20.6.5.1.11`	affected	generic	—
`20.12.1`	affected	generic	—
`20.12.1_LI_Images`	affected	generic	—
`20.6.5.1.13`	affected	generic	—
`20.9.3.0.23`	affected	generic	—
`20.6.5.2.8`	affected	generic	—
`20.9.4.1`	affected	generic	—
`20.9.4.1_LI_Images`	affected	generic	—
`20.9.3.0.25`	affected	generic	—
`20.9.3.0.24`	affected	generic	—
`20.6.5.1.14`	affected	generic	—
`20.3.8`	affected	generic	—
`20.6.6`	affected	generic	—
`20.9.3.0.26`	affected	generic	—
`20.6.3.0.51`	affected	generic	—
`20.9.3.0.29`	affected	generic	—
`20.12.2`	affected	generic	—
`20.12.2_LI_Images`	affected	generic	—
`20.6.6.0.1`	affected	generic	—
`20.13.1_LI_Images`	affected	generic	—
`20.9.4.0.4`	affected	generic	—
`20.13.1`	affected	generic	—
`20.9.4.1.1`	affected	generic	—
`20.9.5`	affected	generic	—
`20.9.5_LI_Images`	affected	generic	—
`20.12.3_LI_Images`	affected	generic	—
`20.12.3`	affected	generic	—
`20.9.4.1.3`	affected	generic	—
`20.6.7`	affected	generic	—
`20.9.5.1`	affected	generic	—
`20.9.5.1_LI_Images`	affected	generic	—
`20.9.4.1.6`	affected	generic	—
`20.14.1`	affected	generic	—
`20.14.1_LI_Images`	affected	generic	—
`20.9.5.2`	affected	generic	—
`20.9.5.2.1`	affected	generic	—
`20.12.3.1`	affected	generic	—
`20.12.4`	affected	generic	—
`20.15.1_LI_Images`	affected	generic	—
`20.15.1`	affected	generic	—
`20.9.5.1.4`	affected	generic	—
`20.9.5.2.7`	affected	generic	—
`20.9.5.2.13`	affected	generic	—
`20.9.6`	affected	generic	—
`20.9.6_LI_Images`	affected	generic	—
`20.9.5.2.14`	affected	generic	—
`20.6.8`	affected	generic	—
`20.12.4.0.03`	affected	generic	—
`20.16.1`	affected	generic	—
`20.16.1_LI_Images`	affected	generic	—
`20.12.4_LI_Images`	affected	generic	—
`20.9.5.2.16`	affected	generic	—
`20.12.4.0.4`	affected	generic	—
`20.12.401`	affected	generic	—
`20.9.5.3`	affected	generic	—
`20.9.5.3_LI_Images`	affected	generic	—
`20.12.4.1_LI_Images`	affected	generic	—
`20.12.4.1`	affected	generic	—
`20.9.5.2.21`	affected	generic	—
`20.12.6_LI_Images`	affected	generic	—
`20.12.6`	affected	generic	—
`20.12.5.1`	affected	generic	—
`20.9.8`	affected	generic	—
`20.9.8_LI_Images`	affected	generic	—
`20.18.2`	affected	generic	—
`20.15.4.1`	affected	generic	—
`20.15.4.1`	affected	generic	—
`20.18.2_LI_Images`	affected	generic	—

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

Apply the vendor‑provided patch or upgrade Cisco Catalyst SD‑WAN Manager to the fixed release documented in the Cisco advisory.
Delete or revoke any read‑only API users that are unnecessary and enforce least privilege for remaining accounts.
If an immediate patch is unavailable, temporarily disable the file upload endpoint or restrict it to non‑system directories to prevent overwriting critical files.

Generated by OpenCVE AI on August 3, 2026 at 08:14 UTC.

Tracking

Advisories

No advisories available

Metrics

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact Low

Integrity Impact Low

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is in the KEV database since April 20, 2026.

Exploit prediction score: 25.8% (25.801% probability within 30 days)

Exploitation active

Automatable no

Technical Impact total

References

Link	Providers
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sdwan-authbp-qwCX8D4v
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-20122

History

Apr 20, 2026 8:15 PM Added references. Scoring metrics updated View changes

Type	Values Removed	Values Added
References		https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-20122
Metrics	ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}`	ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'active', 'Technical Impact': 'total'}, 'version': '2.0.3'}`

Apr 20, 2026 7:30 PM Scoring metrics updated View changes

Type	Values Removed	Values Added
Metrics		kev `{'dateAdded': '2026-04-20T00:00:00+00:00', 'dueDate': '2026-04-23T00:00:00+00:00'}`

Mar 9, 2026 2:15 PM Scoring metrics updated View changes

Type	Values Removed	Values Added
Metrics	ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`	ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}`

Mar 4, 2026 9:30 PM Affected versions updated View changes

Type	Values Removed	Values Added
CPEs		cpe:2.3:a:cisco:catalyst_sd-wan_manager:::::::: cpe:2.3:a:cisco:catalyst_sd-wan_manager:20.12.6:::::::*

Feb 26, 2026 1:30 PM First appearance in the feed. Affected vendors updated View changes

Type	Values Removed	Values Added
First Time appeared		Cisco Cisco catalyst Sd-wan Manager
Vendors & Products		Cisco Cisco catalyst Sd-wan Manager

Feb 25, 2026 10:15 PM Scoring metrics updated View changes

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Feb 25, 2026 5:15 PM Description updated. Title updated. Weaknesses updated. Added references. Scoring metrics updated View changes

Type	Values Removed	Values Added
Description		A vulnerability in the API of Cisco Catalyst SD-WAN Manager could allow an authenticated, remote attacker to overwrite arbitrary files on the local file system. To exploit this vulnerability, the attacker must have valid read-only credentials with API access on the affected system. This vulnerability is due to improper file handling on the API interface of an affected system. An attacker could exploit this vulnerability by uploading a malicious file on the local file system. A successful exploit could allow the attacker to overwrite arbitrary files on the affected system and gain vmanage user privileges.
Title		Cisco Catalyst SD-WAN Manager Arbitrary File Overwrite Vulnerability
Weaknesses		CWE-648
References		https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sdwan-authbp-qwCX8D4v
Metrics		cvssV3_1 `{'score': 5.4, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N'}`