What is CVE-2026-31548?

CVE-2026-31548 is a security advisory published by Microsoft Security Response Center (MSRC) with High severity. wifi: cfg80211: cancel pmsr_free_wk in cfg80211_pmsr_wdev_down

Which CVE IDs does CVE-2026-31548 cover?

CVE-2026-31548 covers the following CVE IDs: CVE-2026-31548. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of CVE-2026-31548?

CVE-2026-31548 has a CVSS v3 base score of 7.8, published by Microsoft Security Response Center (MSRC).

Which products are affected by CVE-2026-31548?

CVE-2026-31548 affects 2 products, including: cbl2 kernel 5.15.202.1-1 on CBL Mariner 2.0; cbl2 kernel 5.15.202.1-1 on CBL-Mariner 2.0.

CVE-2026-31548HighCVSS 7.8

wifi: cfg80211: cancel pmsr_free_wk in cfg80211_pmsr_wdev_down

Vendor

Microsoft Security Response Center (MSRC)

Published

June 2, 2026

Last Modified

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🔗 CVE IDs covered (1)

CVE-2026-31548 →

🎯 Affected products2

cbl2 kernel 5.15.202.1-1 on CBL Mariner 2.0
cbl2 kernel 5.15.202.1-1 on CBL-Mariner 2.0

✅ Remediation

KBRelease Notes (Security Update)

🔗 References (2)

advisoryhttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-31548
referencehttps://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgrade