CVE-2026-5043

Name: CVE-2026-5043
Creator: NVD / NIST
Published: 2026-03-29T12:15:57.937+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.4/10EPSS 0.79%

Last modified Jun 17, 2026

CVE-2026-5043 is a high-severity vulnerability rated 7.4/10 on the CVSS scale. 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. EPSS estimates a 0.79% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

8.8/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS 4.0

7.4/10

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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS Probability

0.79%

51.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Belkin	F9k1122 Firmware	1.00.33

References

https://github.com/Litengzheng/vul_db/blob/main/Belkin/vul_154/README.mdExploit, Third Party Advisory
https://vuldb.com/submit/779124Third Party Advisory, VDB Entry
https://vuldb.com/vuln/353966Third Party Advisory, VDB Entry
https://vuldb.com/vuln/353966/ctiPermissions Required, VDB Entry

Timeline

Published: Mar 29, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-5043?

How severe is CVE-2026-5043?

CVE-2026-5043 has a CVSS score of 7.4/10 (HIGH severity). The EPSS model estimates a 0.79% probability of exploitation in the next 30 days.

How do I fix CVE-2026-5043?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-5043?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST