Vulnerability · Published Apr 13, 2026 · Assigned by VulDB
CVE-2026-6199Tenda F456 qossetting fromqossetting stack-based overflow
High 8.8
In plain English
A high-severity stack buffer overflow in F456 from Tenda. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 41% of all known vulnerabilities).
Severity (CVSS 3.1)8.8High
Exploit odds (30 days)0.5%top 59.0% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
A vulnerability was found in Tenda F456 1.0.0.5. Impacted is the function fromqossetting of the file /goform/qossetting. The manipulation of the argument page results in stack-based buffer overflow. It is possible to launch the attack remotely. The exploit has been made public and could be used.
Affected products (as reported)
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
- VDB-357121 | Tenda F456 qossetting fromqossetting stack-based overflow vdb-entry, technical-description
- VDB-357121 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
- Submit #797471 | Tenda F456 v1.0.0.5 Stack-based Buffer Overflow third-party-advisory
- https://github.com/Litengzheng/vuldb_new/blob/main/F456/vul_116/README.md exploit
- https://www.tenda.com.cn/ product