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Vulnerability · Published Mar 27, 2026 · Assigned by VulDB

CVE-2026-4961Tenda AC6 POST Request QuickIndex formQuickIndex stack-based overflow

High 8.8

In plain English

A high-severity stack buffer overflow in AC6 from Tenda. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.8% (higher than 56% of all known vulnerabilities).

Severity (CVSS 3.1)8.8High
Exploit odds (30 days)0.8%top 43.7% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known

Official description

A vulnerability was identified in Tenda AC6 15.03.05.16. Affected by this vulnerability is the function formQuickIndex of the file /goform/QuickIndex of the component POST Request Handler. The manipulation of the argument PPPOEPassword leads to stack-based buffer overflow. The attack is possible to be carried out remotely. The exploit is publicly available and might be used.

Affected products (as reported)

VendorProductVersions
Tenda AC6 15.03.05.16

Weakness: CWE-121, CWE-119 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R

References