Vulnerability · Published Mar 27, 2026 · Assigned by VulDB
CVE-2026-4974Tenda AC7 POST Request SetSysTimeCfg fromSetSysTime memory corruption
High 8.8
In plain English
A high-severity stack buffer overflow in AC7 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 48.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
A flaw has been found in Tenda AC7 15.03.06.44. Affected by this issue is the function fromSetSysTime of the file /goform/SetSysTimeCfg of the component POST Request Handler. Executing a manipulation of the argument Time can lead to stack-based buffer overflow. It is possible to launch the attack remotely. The exploit has been published and may 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-353861 | Tenda AC7 POST Request SetSysTimeCfg fromSetSysTime memory corruption vdb-entry, technical-description
- VDB-353861 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
- Submit #778207 | Tenda AC7 AC7V1.0 V15.03.06.44 Buffer Overflow third-party-advisory
- https://lavender-bicycle-a5a.notion.site/Tenda-AC7-fromSetSysTime-32153a41781f801c95b0f8a53eaa9a1f?source=copy_link exploit
- https://www.tenda.com.cn/ product