CVE-2026-20359

Cisco Crosswork Security Hardening Release: August 2026

As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco Crosswork engineering team has conducted a comprehensive internal security review. This review resulted in a software hardening release that addresses multiple internally discovered vulnerabilities. The vulnerabilities trackled by CVE-2026-20359 are related to insufficiently protected credentials issues that are grouped under the Common Weakness Enumeration (CWE) CWE-522.

CVSS 3.1 · 9.9 Critical EPSS < 1% KEV · Not listed

Vendors

Cisco

Products

Cisco Crosswork Planning

CVE-2026-20318

Cisco Secure Workload Software Security Hardening Release August 2026 - Improper Input Validation Vulnerabilities

As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco Secure Workload engineering team has conducted a comprehensive internal security review. This review resulted in a software hardening release that addresses multiple internally discovered vulnerabilities. The vulnerabilities tracked by CVE-2026-20318 are related to improper input validation issues that are grouped under the Common Weakness Enumeration (CWE) CWE-20.

CVSS 3.1 · 9.6 Critical EPSS < 1% KEV · Not listed

Vendors

Cisco

Products

Secure Workload

CVE-2026-20317

Cisco Secure Workload Software Security Hardening Release August 2026 - Improper Authentication Vulnerabilities

As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco Secure Workload engineering team has conducted a comprehensive internal security review. This review resulted in a software hardening release that addresses multiple internally discovered vulnerabilities. The vulnerabilities tracked by CVE-2026-20317 are related to improper authentication issues that are grouped under the Common Weakness Enumeration (CWE) CWE-287.

CVSS 3.1 · 10 Critical EPSS < 1% KEV · Not listed

Vendors

Cisco

Products

Secure Workload

CVE-2026-20302

Cisco RoomOS Stack Overflow Vulnerability

A vulnerability in the USB driver of Cisco RoomOS could allow an unauthenticated, local attacker with physical access to the USB port on an affected device to execute arbitrary code with&nbsp;root privileges. This vulnerability is due to insufficient boundary checks for specific data that is provided through the USB driver. An attacker could exploit this vulnerability by connecting a malicious USB device to an affected device. A successful exploit could allow the attacker to cause a buffer overflow condition on the affected system and execute arbitrary code with root privileges.

CVSS 3.1 · 6.1 Medium EPSS < 1% KEV · Not listed

Vendors

Cisco

Products

Cisco Roomos Software

CVE-2026-20177

Cisco Industrial Ethernet 1000 Series Switches Denial of Service Vulnerability

A vulnerability in the handling of management plane packets by Cisco Industrial Ethernet (IE) 1000 Series Switches could allow an unauthenticated, remote attacker to&nbsp;cause the device manager, SSH, or API to become inaccessible.This vulnerability is due to insufficient protection against management plane flooding attacks. An attacker could exploit this vulnerability by sending a high rate of ICMP, SSH, or HTTP traffic to an affected device. A successful exploit could allow the attacker to cause the CPU of the device to increase, resulting in a denial of service (DoS) condition on the device manager web GUI, SSH, or API. Data traffic through the device is not affected.

CVSS 3.1 · 5.3 Medium EPSS < 1% KEV · Not listed

Vendors

Cisco

Products

Cisco Industrial Ethernet Switches

CVE-2026-17153

AI Agent by SiteGround <= 1.2.7 - Missing Authorization to Authenticated (Contributor+) Arbitrary Media Upload via /generate-content REST Endpoint

The AI Agent by SiteGround plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 1.2.7. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for unauthenticated attackers to upload images to the WordPress media library, bypassing the upload_files capability restriction that Contributors are normally subject to, as authenticated attackers with Contributor-level access or above can satisfy the endpoint's nonce and permission checks. The sg_ai_studio_gutenberg_nonce required by the endpoint is emitted to any user with block editor access — including Contributors — making the absent upload_files check the sole barrier to exploitation.

CVSS 3.1 · 5.3 Medium EPSS < 1% KEV · Not listed

Vendors

Siteground Wordpress

Products

Ai Agent By Siteground Wordpress

CVE-2026-16913

Vulnerabilities in IBM AIX and PowerVM VIOS

IBM AIX 7.2, and 7.3 and IBM PowerVM VIOS 4.1 could allow a remote attacker to execute arbitrary code due to a stack buffer overflow.

CVSS 3.1 · 9.8 Critical EPSS < 1% KEV · Not listed

Vendors

Ibm

Products

Aix Powervm Vios Vios

CVE-2026-16911

Vulnerabilities in IBM AIX and PowerVM VIOS

IBM AIX 7.2, and 7.3 and IBM PowerVM VIOS 4.1 could allow a remote authenticated attacker to execute arbitrary code due to a stack buffer overflow.

CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed

Vendors

Ibm

Products

Aix Powervm Vios Vios

CVE-2026-16909

Vulnerabilities in IBM AIX and PowerVM VIOS

IBM AIX 7.2, and 7.3 and IBM PowerVM VIOS 4.1 could allow a remote attacker to execute arbitrary code due to an off-by-one error in bounds checking.

CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed

Vendors

Ibm

Products

Aix Powervm Vios Vios

CVE-2026-16897

Vulnerabilities in IBM AIX and PowerVM VIOS

IBM AIX 7.2, and 7.3 and IBM PowerVM VIOS 4.1 could allow a local attacker to cause a denial of service due to an out-of-bounds write.

CVSS 3.1 · 4.4 Medium EPSS < 1% KEV · Not listed

Vendors

Ibm

Products

Aix Powervm Vios Vios

CVE-2026-16894

Vulnerabilities in IBM AIX and PowerVM VIOS

IBM AIX 7.2, and 7.3 and IBM PowerVM VIOS 4.1 could allow a remote attacker to execute arbitrary code due to a stack buffer overflow.

CVSS 3.1 · 9.8 Critical EPSS < 1% KEV · Not listed

Vendors

Ibm

Products

Aix Powervm Vios Vios

CVE-2026-16891

Vulnerabilities in IBM AIX and PowerVM VIOS

IBM AIX 7.2, and 7.3 and IBM PowerVM VIOS 4.1 could allow a local attacker to obtain sensitive information due to an out-of-bounds read.

CVSS 3.1 · 3.3 Low EPSS < 1% KEV · Not listed

Vendors

Ibm

Products

Aix Powervm Vios Vios

CVE-2026-16890

Vulnerabilities in IBM AIX and PowerVM VIOS

IBM AIX 7.2, and 7.3 and IBM PowerVM VIOS 4.1 could allow a local attacker to obtain sensitive information or cause a denial of service due to an integer overflow.

CVSS 3.1 · 3.6 Low EPSS < 1% KEV · Not listed

Vendors

Ibm

Products

Aix Powervm Vios Vios

CVE-2026-16883

Vulnerabilities in IBM AIX and PowerVM VIOS

IBM AIX 7.2, and 7.3 and IBM PowerVM VIOS 4.1 could allow a local attacker to obtain sensitive information due to an out-of-bounds read.

CVSS 3.1 · 5.5 Medium EPSS < 1% KEV · Not listed

Vendors

Ibm

Products

Aix Powervm Vios Vios

CVE-2026-16882

Vulnerabilities in IBM AIX and PowerVM VIOS

IBM AIX 7.2, and 7.3 and IBM PowerVM VIOS 4.1 could allow a remote attacker to execute arbitrary commands due to improper neutralization of special elements used in an OS command.

CVSS 3.1 · 9.8 Critical EPSS < 1% KEV · Not listed

Vendors

Ibm

Products

Aix Powervm Vios Vios

CVE-2026-16874

Vulnerabilities in IBM AIX and PowerVM VIOS

IBM AIX 7.2, and 7.3 and IBM PowerVM VIOS 4.1 could allow a local attacker to obtain root privileges due to improper enforcement of RBAC authentication roles.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed

Vendors

Ibm

Products

Aix Powervm Vios Vios

CVE-2026-16873

Vulnerabilities in IBM AIX and PowerVM VIOS

IBM AIX 7.2, and 7.3 and IBM PowerVM VIOS 4.1 could allow a local attacker to achieve local privilege escalation due to an out-of-bounds write.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed

Vendors

Ibm

Products

Aix Powervm Vios Vios

CVE-2026-16869

Vulnerabilities in IBM AIX and PowerVM VIOS

IBM AIX 7.2, and 7.3 and IBM PowerVM VIOS 4.1 could allow a local attacker to execute arbitrary code due to improperly scrubbed environment variables.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed

Vendors

Ibm

Products

Aix Powervm Vios Vios

CVE-2026-16866

Vulnerabilities in IBM AIX and PowerVM VIOS

IBM AIX 7.2, and 7.3 and IBM PowerVM VIOS 4.1 could allow a remote attacker to cause a denial of service due to an out-of-bounds read.

CVSS 3.1 · 4.8 Medium EPSS < 1% KEV · Not listed

Vendors

Ibm

Products

Aix Powervm Vios Vios

CVE-2026-16865

Vulnerabilities in IBM AIX and PowerVM VIOS

IBM AIX 7.2, and 7.3 and IBM PowerVM VIOS 4.1 could allow a remote attacker to execute arbitrary code due to command injection.

CVSS 3.1 · 8.8 High EPSS 1.9% KEV · Not listed

Vendors

Ibm

Products

Aix Powervm Vios Vios