CVE•Published 2026-04-06•Modified 2026-04-30•1 article on news•5 live references•NVD data

CVE-2026-5611Belkin · F9k1015_firmware

Vulnerability data via NVD (ingested)

CVSS v3.1

8.8

HIGH

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

EPSS percentile

Exploit Prediction Scoring System · top 86% of all CVEs

Weaknesses (CWE)

CWE-119Improper Restriction of Operations within the Bounds of a Memory Buffer CWE-121Stack-based Buffer Overflow

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.

Timeline

Published 2026-04-06

Modified 2026-04-30

External references

NVD MITRE GitHub PoC Sploitus VulnCheck

Search for exposed instances

Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).

Shodan · vuln tag0 hosts

vuln:CVE-2026-5611

Hosts Shodan has explicitly fingerprinted as vulnerable.

Shodan · OS

os:"F9k1015 Firmware"

Hosts Shodan identified as running F9k1015 Firmware.

More intel sources (5)

Shodan report

vuln:CVE-2026-5611

Country / ASN / product breakdown for the vuln query.

Censys

vulnerabilities.cve_id: CVE-2026-5611