Buffer overflow in Totolink A3002r
CVE-2025-4823
A vulnerability was found in TOTOLINK A702R, A3002R and A3002RU 3.0.0-B20230809.1615. It has been rated as critical. Affected by this issue is the function submit-url of the file /boafrm/formReflashClientTbl of the component HTTP POST Request Handler. The manipulation leads to buffer overflow. The attack may be launched remotely. The exploit has been disclosed to the public and may be used.
Vulnerability class: Buffer Overflow
EPSS: 0.007 (49.2th 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 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
- Totolink A702r — versions 3.0.0-B20230809.1615
- Totolink A702r_firmware — versions 3.0.0-b20230809.1615
Weakness classification (CWE)
Public proof-of-concept exploits
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-2025-4823?
- CVE-2025-4823 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 2025-05-17.
- How severe is CVE-2025-4823?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2025-4823 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.