CVE-2026-4961: A vulnerability was identified in Tenda AC6 15.03.05.16. Affected by this vulnerability is the function formQuickIndex…
CVE-2026-4961 · Severity: high · CVSS 8.8 · Published 2026-03-27
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.
No. Junglewise Threat Intelligence has no report of CVE-2026-4961 being exploited in the wild.
How severe is CVE-2026-4961?
High severity, with a CVSS score of 8.8, published 27 March 2026.
Which products and versions are affected?
Tenda AC6, Tenda Ac6 Firmware. The advisory does not name versions.
Is there a fix for CVE-2026-4961?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
Am I affected by CVE-2026-4961?
Check whether you run Tenda AC6 or Tenda Ac6 Firmware. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.