CRITICAL 9.8 Microsoft
CVE-2026-64593
btrfs: do not trim a device which is not writeable
Microsoft Security Update 2026-Aug: btrfs: do not trim a device which is not writeable
Affected Products
- azl3 kernel 6.6.143.1-1 on Azure Linux 3.0
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-64593
- https://nvd.nist.gov/vuln/detail/CVE-2026-64593
This critical severity vulnerability with a CVSS score of 9.8 was published on 2026-08-11 via Microsoft. Affected: azl3 kernel 6.6.143.1-1 on Azure Linux 3.0.
Risk Timeline
CVE Disclosed2026-08-11 · 39 days ago
Remediation Resources
Official Advisory
msrc.microsoft.com/update-guide/vulnerability/CVE-2026-64593NVD / MITRE
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