Buffer overflow in Totolink A950rg
CVE-2025-60699
A buffer overflow vulnerability exists in the TOTOLINK A950RG Router firmware V5.9c.4592_B20191022_ALL within the `global.so` binary. The `getSaveConfig` function retrieves the `http_host` parameter from user input via `websGetVar` and copies it into a fixed-size stack buffer (`v13`) using `strcpy()` without performing any length checks. An unauthenticated remote attacker can exploit this vulnerability by sending a specially crafted HTTP request to the router's web interface, potentially leading to arbitrary code execution.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L.
EPSS exploit prediction
EPSS: 0.008 (56.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 56th percentile — 56.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000
Affected products
- Totolink A950rg
- Totolink A950rg Firmware — versions 5.9c.4592_b20191022
Weakness classification (CWE)
References
- www.totolink.net/ (Product)
- github.com/yifan20020708/SGTaint-0-day/blob/main/ToToLink/ToToLink-A950RG/2.md (Broken Link)
- github.com/yifan20020708/SGTaint-0-day/blob/main/ToToLink/ToToLink-A950RG/CVE-2… (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2025-60699?
- CVE-2025-60699 is a medium-severity vulnerability in Totolink A950rg, classified under Stack-based Buffer Overflow. CVSS score: 6.5/10. Published 2025-11-13.
- How severe is CVE-2025-60699?
- Medium severity. CVSS v3 base score is 6.5 out of 10.