A weakness has been identified in Tenda AC9 15.03.06.42_multi. Affected is the function formGetDdosDefenceList. This manipulation of the argument security.ddos.map causes stack-based buffer overflow. The attack may be initiated remotely. The exploit has been made available to the public and could be used for attacks.

Attack Vector Network

Attack Complexity Low

Privileges Required High

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact High

Vulnerable System Integrity Impact High

Vulnerable System Availability Impact High

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required High

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

Attack Vector Network

Attack Complexity Low

Privileges Required High

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

Access Vector Network

Access Complexity Low

Authentication Multiple

Confidentiality Impact Complete

Integrity Impact Complete

Availability Impact Complete

This CVE is not in the KEV list.

The EPSS score is 0.00043.

Exploitation poc

Automatable no

Technical Impact total

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

Vendor Product Default status Versions
Tenda AC9 affected
Version Status Constraints
15.03.06.42_multi affected —

No data.

No data.

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Vendors Products
Tenda Subscribe
Ac9 Subscribe

Project Subscriptions

Vendors Products
Tenda Subscribe
Ac9 Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/glkfc/IoT-Vulnerability/blob/main/Tenda/tenda3.md cve-icon cve-icon
https://vuldb.com/?ctiid.344894 cve-icon cve-icon
https://vuldb.com/?id.344894 cve-icon cve-icon
https://vuldb.com/?submit.749800 cve-icon cve-icon
https://www.tenda.com.cn/ cve-icon cve-icon
History

Mon, 09 Feb 2026 21:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Mon, 09 Feb 2026 11:00:00 +0000

Type Values Removed Values Added
First Time appeared Tenda
Tenda ac9
Vendors & Products Tenda
Tenda ac9

Sun, 08 Feb 2026 22:45:00 +0000

Type Values Removed Values Added
Description A weakness has been identified in Tenda AC9 15.03.06.42_multi. Affected is the function formGetDdosDefenceList. This manipulation of the argument security.ddos.map causes stack-based buffer overflow. The attack may be initiated remotely. The exploit has been made available to the public and could be used for attacks.
Title Tenda AC9 formGetDdosDefenceList stack-based overflow
Weaknesses CWE-119
CWE-121
References
Metrics cvssV2_0

{'score': 8.3, 'vector': 'AV:N/AC:L/Au:M/C:C/I:C/A:C/E:POC/RL:ND/RC:UR'}

cvssV3_0

{'score': 7.2, 'vector': 'CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R'}

cvssV3_1

{'score': 7.2, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R'}

cvssV4_0

{'score': 8.6, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulDB

Published:

Updated: 2026-02-09T20:59:17.181Z

Reserved: 2026-02-07T17:28:24.242Z

Link: CVE-2026-2191

cve-icon Vulnrichment

Updated: 2026-02-09T20:59:14.073Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-02-08T23:15:49.483

Modified: 2026-02-09T16:08:35.290

Link: CVE-2026-2191

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-02-09T10:39:44Z

Weaknesses