Vulnerability · Published May 17, 2025 · Assigned by VulDB

CVE-2025-4823TOTOLINK A702R/A3002R/A3002RU HTTP POST Request formReflashClientTbl submit-url buffer overflow

High 8.8

In plain English

A high-severity buffer overflow in A3002R from TOTOLINK. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.8% (higher than 58% of all known vulnerabilities).

Severity (CVSS 3.1)8.8High

Exploit odds (30 days)0.8%top 41.7% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

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 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.

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-309284 | TOTOLINK A702R/A3002R/A3002RU HTTP POST Request formReflashClientTbl submit-url buffer overflow vdb-entry, technical-description
VDB-309284 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
Submit #574593 | 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/1.md exploit
https://www.totolink.net/ product