Vulnerability · Published Apr 9, 2026 · Assigned by VulDB
CVE-2026-5830Tenda AC15 SysToolChangePwd websGetVar stack-based overflow
High 8.8
In plain English
A high-severity stack buffer overflow in AC15 from Tenda. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 51% of all known vulnerabilities).
Severity (CVSS 3.1)8.8High
Exploit odds (30 days)0.6%top 49.2% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
A vulnerability was identified in Tenda AC15 15.03.05.18. This affects the function websGetVar of the file /goform/SysToolChangePwd. Such manipulation of the argument oldPwd/newPwd/cfmPwd leads to stack-based buffer overflow. The attack can be executed remotely. The exploit is publicly available and might 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-356277 | Tenda AC15 SysToolChangePwd websGetVar stack-based overflow vdb-entry, technical-description
- VDB-356277 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
- Submit #789178 | Tenda AC15 15.03.05.18 Memory Corruption third-party-advisory
- https://files.catbox.moe/xrk8jb.zip exploit
- https://www.tenda.com.cn/ product