Buffer overflow in Tenda Ac18
CVE-2025-14993
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 overflo…
Vulnerability class: Buffer Overflow
EPSS: 0.003 (48.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.8 (High). 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.
Affected products
- Tenda Ac18 — versions 15.03.05.05
Weakness classification (CWE)
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)
- github.com/z472421519/BinaryAudit/blob/main/PoC/BOF/Tenda_AC18/SetDlnaCfg/SetDl… (exploit)
- github.com/z472421519/BinaryAudit/blob/main/PoC/BOF/Tenda_AC18/SetDlnaCfg/SetDl… (exploit)
- www.tenda.com.cn/ (product)
Frequently asked questions
- What is CVE-2025-14993?
- CVE-2025-14993 is a high-severity vulnerability in Tenda Ac18, classified under Stack-based Buffer Overflow. CVSS score: 8.8/10. Published 2025-12-21.
- How severe is CVE-2025-14993?
- High severity. CVSS v3 base score is 8.8 out of 10.