Buffer overflow in Totolink A3002r
CVE-2025-4731
A vulnerability classified as critical has been found in TOTOLINK A3002R and A3002RU 3.0.0-B20230809.1615. This affects an unknown part of the file /boafrm/formPortFw of the component HTTP POST Request Handler. The manipulation of the argument service_type/ip_subnet leads to buffer overflow. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used.
Vulnerability class: Buffer Overflow
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.008 (55.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 55th percentile — 55.3% 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 A3002r — versions 3.0.0-B20230809.1615
- Totolink A3002r Firmware — versions 3.0.0-b20230809.1615
- Totolink A3002ru — versions 3.0.0-B20230809.1615
- Totolink A3002ru Firmware — versions 3.0.0-b20230809.1615
Weakness classification (CWE)
References
- vuldb.com/ (technical-description, VDB Entry, Third Party Advisory, vdb-entry)
- vuldb.com/ (signature, Permissions Required, permissions-required, VDB Entry)
- vuldb.com/ (VDB Entry, Third Party Advisory, third-party-advisory)
- github.com/CH13hh/tmp_store_cc/blob/main/tt/ta/4.md (exploit, broken-link, Broken Link)
- www.totolink.net/ (Product, product)
Frequently asked questions
- What is CVE-2025-4731?
- CVE-2025-4731 is a high-severity vulnerability in Totolink A3002r, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 8.8/10. Published 2025-05-16.
- How severe is CVE-2025-4731?
- High severity. CVSS v3 base score is 8.8 out of 10.