CVE-2026-46136 | wifi: mt76: mt7921: fix a potential clc buffer length underflow

In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: mt7921: fix a potential clc buffer length underflow The buf_len is used to limit the iterations for retrieving the country power setting and may underflow under certain conditions due to changes in the power table in CLC. This underflow leads to an almost infinite loop or an invalid power setting resulting in driver initialization failure.

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

Conclusion & alert: CVE-2026-46136 is rated Low Risk (5.2/100): low exploitation likelihood (EPSS 0.02%). 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-2026-46136

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 2026-05-28 0.02%

Full EPSS history (1 record total)

Common vulnerability scoring system (CVSS) metrics for CVE-2026-46136

CVSS metrics for this CVE.

No CVSS data in dataset for this CVE.

Weakness enumeration for CVE-2026-46136

GitHub Security Advisory for CVE-2026-46136

GHSA-jm55-4g4j-2rgw · Severity: unknown — In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: mt7921: fix a...

OS Trackers for CVE-2026-46136

vendor priority summary link
debian unimportant CVE-2026-46136 unimportant priority: Debian including 1 source packages (linux), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 4, open 1. https://security-tracker.debian.org/tracker/CVE-2026-46136
redhat low https://access.redhat.com/security/cve/CVE-2026-46136
suse https://www.suse.com/security/cve/CVE-2026-46136/
ubuntu medium CVE-2026-46136 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 169, released 84, not-affected 79, needed 66. https://ubuntu.com/security/CVE-2026-46136

Affected software / configurations for CVE-2026-46136

Vendor Product Version Raw CPE
No affected products in dataset.

References for CVE-2026-46136

cvelogic Threat Intelligence