Vulnerability · Published Dec 21, 2025 · Assigned by VulDB
CVE-2025-14993Tenda AC18 HTTP Request SetDlnaCfg sprintf stack-based overflow
High 8.8
In plain English
A high-severity stack buffer overflow in AC18 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 55% of all known vulnerabilities).
Severity (CVSS 3.1)8.8High
Exploit odds (30 days)0.7%top 45.2% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
A vulnerability was detected in Tenda AC18 15.03.05.05. This affects the function sprintf of the file /goform/SetDlnaCfg of the component HTTP Request Handler. The manipulation of the argument scanList results in stack-based buffer overflow. The attack can be executed remotely. The exploit is now public 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-337687 | Tenda AC18 HTTP Request SetDlnaCfg sprintf stack-based overflow vdb-entry, technical-description
- VDB-337687 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
- Submit #719084 | Tenda AC18 V1.0 15.03.05.05 Stack-based Buffer Overflow third-party-advisory
- https://github.com/z472421519/BinaryAudit/blob/main/PoC/BOF/Tenda_AC18/SetDlnaCfg/SetDlnaCfg.md exploit
- https://github.com/z472421519/BinaryAudit/blob/main/PoC/BOF/Tenda_AC18/SetDlnaCfg/SetDlnaCfg.md#reproduce exploit
- https://www.tenda.com.cn/ product