Read the docs
TI-2026-04401 Aliases CVE-2026-5043GHSA-h95j-mxr9-q69c

Belkin F9K1122 Parameter formSetPassword stack-based overflow

Priority HIGH 73CWE-119Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-119 and the CVSS impact.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00824 57th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA and NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
BelkinF9K11221.00.33—No fix listedCNA
  • F9K1122 VendorBelkin Affected 1.00.33 Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:o:belkin:f9k1122_firmware:1.00.33:*:*:*:*:*:*:*1.00.33VulnerableBelkin
cpe:2.3:h:belkin:f9k1122:-:*:*:*:*:*:*:*not specified by NVDRunning onBelkin
  • cpe:2.3:o:belkin:f9k1122_firmware:1.00.33:*:*:*:*:*:*:* Versions 1.00.33 Vulnerable ·Belkin
  • cpe:2.3:h:belkin:f9k1122:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Belkin

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-5043
  2. 2026-10-03 Alias added: GHSA-h95j-mxr9-q69c

References

Exploit 1

  • TI-2026-04916 Belkin F9K1122 formWlanSetup stack-based overflow CVSS 4.0HIGH 8.7
  • TI-2026-04402 Belkin F9K1122 Setting formSetSystemSettings stack-based overflow CVSS 4.0HIGH 8.7
  • TI-2026-04400 Belkin F9K1122 Parameter formCrossBandSwitch stack-based overflow CVSS 4.0HIGH 8.7
  • TI-2026-03970 Belkin F9K1122 formWISP5G stack-based overflow CVSS 4.0HIGH 8.7
  • TI-2025-06456 Belkin F9K1122 webs formBSSetSitesurvey stack-based overflow CVSS 4.0HIGH 8.7
  • TI-2025-06455 Belkin F9K1122 webs formSetLanguage stack-based overflow CVSS 4.0HIGH 8.7
See all 18 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences