Vulnerability · Published May 17, 2025 · Assigned by VulDB

CVE-2025-4834TOTOLINK A702R/A3002R/A3002RU HTTP POST Request formSetLg buffer overflow

High 8.8

In plain English

A high-severity buffer overflow in A3002R from TOTOLINK. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.9% (higher than 58% of all known vulnerabilities).

Severity (CVSS 3.1)8.8High

Exploit odds (30 days)0.9%top 41.7% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

A vulnerability was found in TOTOLINK A702R, A3002R and A3002RU 3.0.0-B20230809.1615. It has been classified as critical. Affected is an unknown function of the file /boafrm/formSetLg 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	A702R	3.0.0-B20230809.1615
TOTOLINK	A3002R	3.0.0-B20230809.1615
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

References

VDB-309300 | TOTOLINK A702R/A3002R/A3002RU HTTP POST Request formSetLg buffer overflow vdb-entry, technical-description
VDB-309300 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
Submit #574607 | TOTOLINK A3002RU V2 /A3002R_V2 /A3002R_V4 /A3002RU_V3/ A702R V3.0.0-B20230809.1615 Buffer Overflow third-party-advisory
https://github.com/CH13hh/tmp_store_cc/blob/main/toto/12.md broken-link, exploit
https://www.totolink.net/ product