CVE-2025-9781

TOTOLINK A702R formFilter sub_4162DC buffer overflow

State: Published
Severity: 8.7 High
Published: Sep 1, 2025
Updated: Sep 2, 2025
Reserved: Sep 1, 2025

Description

A vulnerability has been found in TOTOLINK A702R 4.0.0-B20211108.1423. This affects the function sub_4162DC of the file /boafrm/formFilter. Such manipulation of the argument ip6addr leads to buffer overflow. The attack can be launched remotely. The exploit has been disclosed to the public and may be used.

Scores

CVSS	Score	Vector	Source
4.0	8.7 High	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P	VulDB
3.1	8.8 High	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	VulDB
3.0	8.8 High	CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R	VulDB
2.0	9.0 High	AV:N/AC:L/Au:S/C:C/I:C/A:C/E:POC/RL:ND/RC:UR	VulDB

Weaknesses

CWE-120 Buffer Overflow
CWE-119 Memory Corruption

Affected Products

Product	Versions
A702RTOTOLINK	4.0.0-B20211108.1423Affected

References

VDB-322083 | TOTOLINK A702R formFilter sub_4162DC buffer overflowvdb-entrytechnical-description
VDB-322083 | CTI Indicators (IOB, IOC, IOA)signaturepermissions-required
Submit #640989 | TOTOLINK A702R V4.0.0-B20211108.1423 Buffer Overflowthird-party-advisory
https://github.com/rew1X/CVE/blob/main/TOTOLINK/A702R/formFilter/formFilter.mdrelated
https://github.com/rew1X/CVE/blob/main/TOTOLINK/A702R/formFilter/formFilter.md#pocexploit
https://www.totolink.net/product

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