Buffer overflow in Tenda Ac23
CVE-2025-10803
A vulnerability has been found in Tenda AC23 up to 16.03.07.52. Affected by this vulnerability is the function sscanf of the file /goform/SetPptpServerCfg of the component HTTP POST Request Handler. Such manipulation of the argument startI…
Vulnerability class: Buffer Overflow
EPSS: 0.002 (48.3th 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 Ac23 — versions 16.03.07.0, 16.03.07.1, 16.03.07.2
Weakness classification (CWE)
Public proof-of-concept exploits
References
- VDB-325161 | Tenda AC23 HTTP POST Request SetPptpServerCfg sscanf buffer overflow (vdb-entry, technical-description)
- VDB-325161 | CTI Indicators (IOB, IOC, IOA) (signature, permissions-required)
- Submit #654237 | Tenda AC23 <= V16.03.07.52 Buffer Overflow (third-party-advisory)
- github.com/lin-3-start/lin-cve/blob/main/Tenda AC23-3/Tenda AC23 Buffer overflo… (exploit)
- www.tenda.com.cn/ (product)
Frequently asked questions
- What is CVE-2025-10803?
- CVE-2025-10803 is a high-severity vulnerability in Tenda Ac23, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 8.8/10. Published 2025-09-22.
- How severe is CVE-2025-10803?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2025-10803 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.