CVE-2026-46136: Linux vulnerability

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.

UnknownCVSS not scoredNot KEV-listedUpdatedOct 15, 2026, 01:20 UTC (UTC+00:00)

Potential ATT&CK relevance

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CVE-2026-46136 mapping review

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: May 28, 2026, 09:35 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors

3Timeline events

1ADP providers

8Source links

Vulnerability timeline

Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.

CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
May 13, 2026, 15:03 UTC (UTC+00:00)
CVE publishedCVE Program
The CVE record was published.
May 28, 2026, 09:35 UTC (UTC+00:00)
CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
Oct 15, 2026, 01:20 UTC (UTC+00:00)

ADP provider summaries

Source materials

CVE List V5 sourceCVE List V5
https://git.kernel.org/stable/c/2a79b1a492bcfa725383b6580cd93a6862308c85CVE reference, Linux
https://git.kernel.org/stable/c/e451c325b000b9a0081fd93bc6d103d6943d4b55CVE reference, Linux
https://git.kernel.org/stable/c/90cc573fd2f46ddbc2c329e7814b5ba3deb7b939CVE reference, Linux
https://git.kernel.org/stable/c/0aa63d33742b805d1a218d18d12b983cce4b2f7bCVE reference, Linux
https://git.kernel.org/stable/c/a0111847f0b4f6023f6dd320114697514e024ba3CVE reference, Linux
https://git.kernel.org/stable/c/5373f8b19e568b5c217832b9bbef165bd2b2df14CVE reference, Linux
https://cert-portal.siemens.com/productcert/html/ssa-784472.htmlCVE reference, siemens-SADP

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

LinuxLinux0c9318d49e501a5d50b02bd91a4813bde2353488, 15173a1697236793e9e900b82fece6f99d41b2a7, fa6ad88e023ddfa6c5dcdb466d159e89f451e305, fa6ad88e023ddfa6c5dcdb466d159e89f451e305, fa6ad88e023ddfa6c5dcdb466d159e89f451e305, fa6ad88e023ddfa6c5dcdb466d159e89f451e305, 5c8cac512844ad593d31258e215908014381bee2, 6.1.75, 6.6.14, 6.7.2unaffected

LinuxLinux6.8, 0, 6.1.175, 6.6.140, 6.12.88, 6.18.30, 7.0.7, 7.1affected

Weakness

CWE details

No CWE listed

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