Buffer overflow in Totolink T10
CVE-2025-14964
A vulnerability has been found in TOTOLINK T10 4.1.8cu.5083_B20200521. This affects the function sprintf of the file /cgi-bin/cstecgi.cgi. Such manipulation of the argument loginAuthUrl leads to stack-based buffer overflow. The attack may…
Vulnerability class: Buffer Overflow
EPSS: 0.010 (76.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:X/RL:X/RC:R.
Affected products
- Totolink T10 — versions 4.1.8cu.5083_B20200521
Weakness classification (CWE)
References
- VDB-337599 | TOTOLINK T10 cstecgi.cgi sprintf stack-based overflow (vdb-entry, technical-description)
- VDB-337599 | CTI Indicators (IOB, IOC, IOA) (signature, permissions-required)
- Submit #717720 | TOTOLINK T10 V2_Firmware V4.1.8cu.5083_B20200521 Buffer Overflow (third-party-advisory)
- github.com/JackWesleyy/CVE/blob/main/TOTOLINK_T10_BOC.md (related)
- www.totolink.net/ (product)
Frequently asked questions
- What is CVE-2025-14964?
- CVE-2025-14964 is a critical-severity vulnerability in Totolink T10, classified under Stack-based Buffer Overflow. CVSS score: 9.8/10. Published 2025-12-19.
- How severe is CVE-2025-14964?
- Critical severity. CVSS v3 base score is 9.8 out of 10.