Vulnerability details

CVE-2026-5043

Belkin F9K1122

Belkin F9K1122 Parameter formSetPassword stack-based overflow

CVSS 4.0

8.7High

Official description

A weakness has been identified in Belkin F9K1122 1.00.33. The impacted element is the function formSetPassword of the file /goform/formSetPassword of the component Parameter Handler. This manipulation of the argument webpage causes stack-based buffer overflow. Remote exploitation of the attack is possible. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.

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
Belkin	F9K1122	1.00.33	CVEProject cvelistV5 (CNA)

References and advisories

https://vuldb.com/vuln/353966 vdb-entrytechnical-description
https://vuldb.com/vuln/353966/cti signaturepermissions-required
https://vuldb.com/submit/779124 third-party-advisory
https://github.com/Litengzheng/vul_db/blob/main/Belkin/vul_154/README.md exploit

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Details

Published: 2026-03-29
Last updated: 2026-03-30
State: Published
Assigner (CNA): VulDB

Exploit prediction (EPSS)

0.82%

Probability of exploitation in 30 days

57.5%

Percentile (among all CVEs)

SSVC assessment (CISA)

Automatable: No
Exploitation: Proof of concept
Technical impact: Total

Weaknesses (CWE)

CWE-121
Stack-based Buffer Overflow
CWE-119
Memory Corruption