Buffer overflow in Totolink A3000ru
CVE-2025-4496
A vulnerability was found in TOTOLINK T10, A3100R, A950RG, A800R, N600R, A3000RU and A810R 4.1.8cu.5241_B20210927. It has been declared as critical. This vulnerability affects the function CloudACMunualUpdate of the file /cgi-bin/cstecgi.c…
Vulnerability class: Buffer Overflow
EPSS: 0.010 (58.9th 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.
Affected products
- Totolink A3000ru — versions 4.1.8cu.5241_B20210927
- Totolink A3000ru_firmware — versions 4.1.8cu.5241_b20210927
- Totolink A3100r — versions 4.1.8cu.5241_B20210927
- Totolink A3100r_firmware — versions 4.1.8cu.5241_b20210927
- Totolink A800r — versions 4.1.8cu.5241_B20210927
- Totolink A800r_firmware — versions 4.1.8cu.5241_b20210927
- Totolink A810r — versions 4.1.8cu.5241_B20210927
- Totolink A810r_firmware — versions 4.1.8cu.5241_b20210927
- Totolink A950rg — versions 4.1.8cu.5241_B20210927
- Totolink A950rg_firmware — versions 4.1.8cu.5241_b20210927
Weakness classification (CWE)
References
- cna@vuldb.com (technical-description, VDB Entry, Third Party Advisory, vdb-entry)
- cna@vuldb.com (signature, Permissions Required, permissions-required, VDB Entry)
- cna@vuldb.com (VDB Entry, Third Party Advisory, third-party-advisory)
- cna@vuldb.com (exploit, Broken Link)
- cna@vuldb.com (Product, product)
Frequently asked questions
- What is CVE-2025-4496?
- CVE-2025-4496 is a high-severity vulnerability in Totolink A3000ru, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 8.8/10. Published 2025-05-10.
- How severe is CVE-2025-4496?
- High severity. CVSS v3 base score is 8.8 out of 10.