Vulnerability · Published Jul 1, 2025 · Assigned by VulDB

CVE-2025-6939TOTOLINK A3002RU HTTP POST Request formWlSiteSurvey buffer overflow

High 8.8

In plain English

A high-severity buffer overflow in A3002RU from TOTOLINK. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 1.0% (higher than 62% of all known vulnerabilities).

Severity (CVSS 3.1)8.8High

Exploit odds (30 days)1.0%top 37.6% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

A vulnerability classified as critical has been found in TOTOLINK A3002RU 3.0.0-B20230809.1615. Affected is an unknown function of the file /boafrm/formWlSiteSurvey of the component HTTP POST Request Handler. The manipulation of the argument submit-url leads to buffer overflow. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used.

Affected products (as reported)

Vendor	Product	Versions
TOTOLINK	A3002RU	3.0.0-B20230809.1615

Weakness: CWE-120, CWE-119 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R

References

VDB-314460 | TOTOLINK A3002RU HTTP POST Request formWlSiteSurvey buffer overflow vdb-entry, technical-description
VDB-314460 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
Submit #605860 | TOTOLINK A3002RU V3.0.0-B20230809.1615 Buffer Overflow third-party-advisory
https://github.com/awindog/cve/blob/main/688/30.md exploit
https://www.totolink.net/ product