Vulnerability · Published Feb 22, 2026 · Assigned by VulDB
CVE-2026-2930Tenda A18 Httpd Service UploadCfg webCgiGetUploadFile stack-based overflow
Medium 6.3
In plain English
A medium-severity stack buffer overflow in A18 from Tenda. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 29% of all known vulnerabilities).
Severity (CVSS 3.1)6.3Medium
Exploit odds (30 days)0.4%top 71.2% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
A vulnerability was identified in Tenda A18 15.13.07.13. The affected element is the function webCgiGetUploadFile of the file /cgi-bin/UploadCfg of the component Httpd Service. Such manipulation of the argument boundary 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:L/I:L/A:L/E:P/RL:X/RC:R
References
- VDB-347277 | Tenda A18 Httpd Service UploadCfg webCgiGetUploadFile stack-based overflow vdb-entry, technical-description
- VDB-347277 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
- Submit #755227 | Tenda A18 V15.13.07.13 Stack-based Buffer Overflow third-party-advisory
- https://github.com/master-abc/cve/issues/40 exploit, issue-tracking
- https://www.tenda.com.cn/ product