Vulnerability details

CVE-2025-9781

Totolink A702R

TOTOLINK A702R formFilter sub_4162DC buffer overflow

CVSS 4.0

8.7High

Official 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.

CVSS scores

Score	Version	Source	Vector
8.7High	4.0	CVEProject cvelistV5 (CNA) (VulDB)	`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`
8.8High	3.1	CVEProject cvelistV5 (CNA) (VulDB)	`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`
8.8High	3.0	CVEProject cvelistV5 (CNA) (VulDB)	`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`
9.0High	2.0	CVEProject cvelistV5 (CNA) (VulDB)	`AV:N/AC:L/Au:S/C:C/I:C/A:C/E:POC/RL:ND/RC:UR`

Affected products

Vendor	Product	Versions	Source
Totolink	A702R	4.0.0-B20211108.1423	CVEProject cvelistV5 (CNA)

References and advisories

https://vuldb.com/?id.322083 vdb-entrytechnical-description
https://vuldb.com/?ctiid.322083 signaturepermissions-required
https://vuldb.com/?submit.640989 third-party-advisory
https://github.com/rew1X/CVE/blob/main/TOTOLINK/A702R/formFilter/formFilter.md related
https://github.com/rew1X/CVE/blob/main/TOTOLINK/A702R/formFilter/formFilter.md#poc exploit
https://www.totolink.net/ product

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Details

Published: 2025-09-01
Last updated: 2025-09-02
State: Published
Assigner (CNA): VulDB

Exploit prediction (EPSS)

0.69%

Probability of exploitation in 30 days

53.2%

Percentile (among all CVEs)

SSVC assessment (CISA)

Automatable: No
Exploitation: None
Technical impact: Total

Weaknesses (CWE)

CWE-120
Buffer Overflow
CWE-119
Memory Corruption