CVE-2026-46122 | wifi: b43: enforce bounds check on firmware key index in b43_rx()

In the Linux kernel, the following vulnerability has been resolved: wifi: b43: enforce bounds check on firmware key index in b43_rx() The firmware-controlled key index in b43_rx() can exceed the dev->key[] array size (58 entries). The existing B43_WARN_ON is non-enforcing in production builds, allowing an out-of-bounds read. Make the B43_WARN_ON check enforcing by dropping the frame when the firmware returns an invalid key index.

Published: 2026-05-28 Last update: 2026-06-01 Assigner: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67

Conclusion & alert: CVE-2026-46122 is rated Low Risk (7.5/100): low exploitation likelihood (EPSS 0.18%). Mandatory action: Low composite risk—no urgent action required; patch on your normal maintenance cycle and revisit priority if CVSS or EPSS increases.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2026-46122

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.02% 0.18% +0.16%
2 2026-05-28 0.02%

Full EPSS history (2 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2026-46122

CVSS metrics for this CVE.

No CVSS data in dataset for this CVE.

Weakness enumeration for CVE-2026-46122

GitHub Security Advisory for CVE-2026-46122

GHSA-pq22-w363-wp5p · Severity: unknown — In the Linux kernel, the following vulnerability has been resolved: wifi: b43: enforce bounds...

OS Trackers for CVE-2026-46122

vendor priority summary link
debian not yet assigned CVE-2026-46122 not yet assigned priority: Debian including 1 source packages (linux), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 3, open 2. https://security-tracker.debian.org/tracker/CVE-2026-46122
redhat https://access.redhat.com/security/cve/CVE-2026-46122
suse https://www.suse.com/security/cve/CVE-2026-46122/
ubuntu medium CVE-2026-46122 medium priority: Ubuntu including 158 source packages (linux, linux-allwinner-5.19, …), 1422 status rows across 9 suites (bionic, focal, jammy, noble, questing, resolute, trusty, upstream, xenial): DNE 1024, ignored 173, needed 141, released 84. https://ubuntu.com/security/CVE-2026-46122

Affected software / configurations for CVE-2026-46122

Vendor Product Version Raw CPE
No affected products in dataset.

References for CVE-2026-46122

cvelogic Threat Intelligence