Vulnerability · Published Apr 5, 2026 · Assigned by VulDB
CVE-2026-5605Tenda CH22 WrlExtraSet formWrlExtraSet stack-based overflow
High 8.8
In plain English
A high-severity stack 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 0.7% (higher than 54% of all known vulnerabilities).
Severity (CVSS 3.1)8.8High
Exploit odds (30 days)0.7%top 46.4% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
A weakness has been identified in Tenda CH22 1.0.0.1. This affects the function formWrlExtraSet of the file /goform/WrlExtraSet. Executing a manipulation of the argument GO can lead to stack-based buffer overflow. The attack can be executed remotely. The exploit has been made available to the public and could be used for attacks.
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-355397 | Tenda CH22 WrlExtraSet formWrlExtraSet stack-based overflow vdb-entry, technical-description
- VDB-355397 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
- Submit #785052 | Tenda CH22 V1.0.0.1 Stack-based Buffer Overflow third-party-advisory
- https://github.com/Litengzheng/vuldb_new/blob/main/CH22/vul_54/README.md exploit
- https://www.tenda.com.cn/ product