CVE-2026-46136

26

FAUCET Score

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.

First published: May 28, 2026Last modified: Jun 14, 2026

Impacted Technologies

Vendor	Product	Version(s)	CPE
		>= 6.1.75, < 6.1.175CPE matchmatch criteria	cpe:2.3:o:linux:linux_kernel::::::::
		>= 6.6.14, < 6.6.140CPE matchmatch criteria	cpe:2.3:o:linux:linux_kernel::::::::
		>= 6.7.2, < 6.12.88CPE matchmatch criteria	cpe:2.3:o:linux:linux_kernel::::::::
		>= 6.13, < 6.18.30CPE matchmatch criteria	cpe:2.3:o:linux:linux_kernel::::::::
		>= 6.19, < 7.0.7CPE matchmatch criteria	cpe:2.3:o:linux:linux_kernel::::::::

CVSS Data

CVSS version used by this source: 3.1

7.8HIGH

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

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

Exploitability Score

1.8

Impact Score

5.9

CvssVersion

3.1

Exploit Intelligence

EPSS Score

0.13%

Probability of exploitation in next 30 days

EPSS Percentile

3.0%

Percentile rank of EPSS score among Peer Group

As of 2026-07-27

Model: v2026.06.15

This CVE's current EPSS score of 0.0013 is in the 14th percentile among its peer group of 17,070 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (34)

microsoftpatch availablevia msrc

Product: azl3 kernel 6.6.139.1-1 on Azure Linux 3.0Fixed in: 6.6.141.1-1

microsoftpatch availablevia msrc

Product: 21344-17084Fixed in: 6.6.141.1-1

ubuntupatch availablevia ubuntu_usn

Product: linux-gcp-6.8 (jammy)Fixed in: 6.8.0-1064.72~22.04.1

ubuntupatch availablevia ubuntu_usn

Product: linux-realtime-6.8 (jammy)Fixed in: 6.8.1-1056.57~22.04.2

ubuntupatch availablevia ubuntu_usn

Product: linux (noble)Fixed in: 6.8.0-136.136

ubuntupatch availablevia ubuntu_usn

Product: linux-gcp (noble)Fixed in: 6.8.0-1064.72

ubuntupatch availablevia ubuntu_usn

Product: linux-gke (noble)Fixed in: 6.8.0-1059.67

ubuntupatch availablevia ubuntu_usn

Product: linux-gkeop (noble)Fixed in: 6.8.0-1046.50

ubuntupatch availablevia ubuntu_usn

Product: linux-realtime (noble)Fixed in: 6.8.1-1056.57

ubuntupatch availablevia ubuntu_usn

Product: linux (resolute)Fixed in: 7.0.0-28.28

ubuntupatch availablevia ubuntu_usn

Product: linux-gcp (resolute)Fixed in: 7.0.0-1008.8

ubuntupatch availablevia ubuntu_usn

Product: linux-gke (resolute)Fixed in: 7.0.0-1003.4

ubuntupatch availablevia ubuntu_usn

Product: linux-realtime (resolute)Fixed in: 7.0.0-28.28.1

ubuntupatch availablevia ubuntu_usn

Product: linux-gcp-fips (noble)Fixed in: 6.8.0-1064.72+fips1

ubuntupatch availablevia ubuntu_usn

Product: linux-nvidia-6.8 (jammy)Fixed in: 6.8.0-1059.62~22.04.1

ubuntupatch availablevia ubuntu_usn

Product: linux-nvidia (noble)Fixed in: 6.8.0-1059.62

ubuntupatch availablevia ubuntu_usn

Product: linux-nvidia-lowlatency (noble)Fixed in: 6.8.0-1059.62.1

ubuntupatch availablevia ubuntu_usn

Product: linux-hwe-7.0 (noble)Fixed in: 7.0.0-28.28~24.04.1

ubuntupatch availablevia ubuntu_usn

Product: linux-lowlatency-hwe-6.8 (jammy)Fixed in: 6.8.0-136.136.2~22.04.1

ubuntupatch availablevia ubuntu_usn

Product: linux-fips (noble)Fixed in: 6.8.0-136.136+fips2

ubuntupatch availablevia ubuntu_usn

Product: linux-lowlatency (noble)Fixed in: 6.8.0-136.136.2

ubuntupatch availablevia ubuntu_usn

Product: linux-oracle (noble)Fixed in: 6.8.0-1058.61

ubuntupatch availablevia ubuntu_usn

Product: linux-ibm (resolute)Fixed in: 7.0.0-1010.10

ubuntupatch availablevia ubuntu_usn

Product: linux-oracle (resolute)Fixed in: 7.0.0-1008.8

ubuntupatch availablevia ubuntu_usn

Product: linux-azure-fde-6.8 (jammy)Fixed in: 6.8.0-1062.69~22.04.1

ubuntupatch availablevia ubuntu_usn

Product: linux-azure-fips (noble)Fixed in: 6.8.0-1063.71+fips2

ubuntupatch availablevia ubuntu_usn

Product: linux-azure-fde (noble)Fixed in: 6.8.0-1062.69

ubuntupatch availablevia ubuntu_usn

Product: linux-azure-6.8 (jammy)Fixed in: 6.8.0-1063.71~22.04.1

ubuntupatch availablevia ubuntu_usn

Product: linux-azure (noble)Fixed in: 6.8.0-1063.71

ubuntupatch availablevia ubuntu_usn

Product: linux-aws (noble)Fixed in: 6.8.0-1061.64

ubuntupatch availablevia ubuntu_usn

Product: linux-azure (resolute)Fixed in: 7.0.0-1010.10

ubuntupatch availablevia ubuntu_usn

Product: linux-azure-fde (resolute)Fixed in: 7.0.0-1009.9

ubuntupatch availablevia ubuntu_usn

Product: linux-oracle-6.8 (jammy)Fixed in: 6.8.0-1058.61~22.04.1

ubuntupatch availablevia ubuntu_usn

Product: linux-oem-7.0 (resolute)Fixed in: 7.0.0-1009.9

Vendor Advisories (16)

ubuntuUSN-8609-1

Linux kernel (Azure CVM) vulnerabilities

ubuntuUSN-8608-1

Linux kernel (Azure FIPS) vulnerabilities

ubuntuUSN-8607-1

Linux kernel (Azure CVM) vulnerabilities

ubuntuUSN-8606-1

Linux kernel (Azure) vulnerabilities

ubuntuUSN-8595-2

Linux kernel (AWS) vulnerabilities

ubuntuUSN-8603-1

Linux kernel (Azure) vulnerabilities

ubuntuUSN-8596-1

Linux kernel (NVIDIA) vulnerabilities

ubuntuUSN-8595-1

Linux kernel (Oracle) vulnerabilities

ubuntuUSN-8574-2

Linux kernel vulnerabilities

ubuntuUSN-8593-1

Linux kernel vulnerabilities

ubuntuUSN-8574-1

Linux kernel (GCP FIPS) vulnerabilities

ubuntuUSN-8569-1

Linux kernel (HWE) vulnerabilities

ubuntuUSN-8568-1

Linux kernel (OEM) vulnerabilities

ubuntuUSN-8567-1

Linux kernel vulnerabilities

ubuntuUSN-8566-1

Linux kernel vulnerabilities

microsoft2026-May/CVE-2026-46136Moderate

wifi: mt76: mt7921: fix a potential clc buffer length underflow

References

git.kernel.org / stable/c/0aa63d33742b805d1a218d18d12b983cce4b2f7b

Patch

git.kernel.org / stable/c/2a79b1a492bcfa725383b6580cd93a6862308c85

Patch

git.kernel.org / stable/c/5373f8b19e568b5c217832b9bbef165bd2b2df14

Patch

git.kernel.org / stable/c/90cc573fd2f46ddbc2c329e7814b5ba3deb7b939

Patch

git.kernel.org / stable/c/a0111847f0b4f6023f6dd320114697514e024ba3

Patch

git.kernel.org / stable/c/e451c325b000b9a0081fd93bc6d103d6943d4b55

Patch