CVE-2026-5611

Name: CVE-2026-5611
Creator: NVD / NIST
Published: 2026-04-06T03:16:07.57+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.4/10EPSS 0.69%

Last modified Jun 17, 2026

CVE-2026-5611 is a high-severity vulnerability rated 7.4/10 on the CVSS scale. A vulnerability was found in Belkin F9K1015 1.00.10. This affects the function formCrossBandSwitch of the file /goform/formCrossBandSwitch. EPSS estimates a 0.69% chance of exploitation in the next 30 days.

Description

A vulnerability was found in Belkin F9K1015 1.00.10. This affects the function formCrossBandSwitch of the file /goform/formCrossBandSwitch. Performing a manipulation of the argument webpage results in stack-based buffer overflow. The attack can be initiated remotely. The exploit has been made public and could be used. 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

0.69%

48.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Belkin	F9k1015 Firmware	1.00.10

References

https://github.com/Litengzheng/vuldb_new/blob/main/Belkin%20F9K1015/vul_5/README.mdExploit, Third Party Advisory
https://vuldb.com/submit/785538Third Party Advisory, VDB Entry
https://vuldb.com/vuln/355402Third Party Advisory, VDB Entry
https://vuldb.com/vuln/355402/ctiPermissions Required, VDB Entry

Timeline

Published: Apr 6, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-5611?

How severe is CVE-2026-5611?

CVE-2026-5611 has a CVSS score of 7.4/10 (HIGH severity). The EPSS model estimates a 0.69% probability of exploitation in the next 30 days.

How do I fix CVE-2026-5611?

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-2026-5611?

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

Scan your code now

Source: NVD / NIST