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Vulnerability · Published Jun 7, 2025 · Assigned by VulDB

CVE-2025-5839Tenda AC9 POST Request AdvSetLanip fromadvsetlanip buffer overflow

High 8.8

In plain English

A high-severity buffer overflow in AC9 from Tenda. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 1.1% (higher than 66% of all known vulnerabilities).

Severity (CVSS 3.1)8.8High
Exploit odds (30 days)1.1%top 34.3% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known

Official description

A vulnerability, which was classified as critical, has been found in Tenda AC9 15.03.02.13. Affected by this issue is the function fromadvsetlanip of the file /goform/AdvSetLanip of the component POST Request Handler. The manipulation of the argument lanMask leads to buffer overflow. The attack may be launched remotely. The exploit has been disclosed to the public and may be used.

Affected products (as reported)

VendorProductVersions
Tenda AC9 15.03.02.13

Weakness: CWE-120, 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