Vulnerability · Published Nov 19, 2025 · Assigned by VulDB
CVE-2025-13400Tenda CH22 WrlExtraGet formWrlExtraGet buffer overflow
High 8.8
In plain English
A high-severity buffer overflow in CH22 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 55% of all known vulnerabilities).
Severity (CVSS 3.1)8.8High
Exploit odds (30 days)0.8%top 44.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
A vulnerability was detected in Tenda CH22 1.0.0.1. Affected is the function formWrlExtraGet of the file /goform/WrlExtraGet. Performing a manipulation of the argument chkHz results in buffer overflow. Remote exploitation of the attack is possible. The exploit is now public and may be used.
Affected products (as reported)
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
- VDB-332926 | Tenda CH22 WrlExtraGet formWrlExtraGet buffer overflow vdb-entry, technical-description
- VDB-332926 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
- Submit #692145 | Tenda CH22 V1.0.0.1 Buffer Overflow third-party-advisory
- https://github.com/f000x0/cve/issues/14 exploit, issue-tracking
- https://www.tenda.com.cn/ product