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Δ / VULNERABILITY RECORD

CVE-2026-64567.

Source-reported disclosure and enrichment record.

SEVERITY / CVSSMEDIUM / 4.4No severity score in this snapshot.
EXPLOITATION STATUSNot listed in the cached KEV catalogThis does not establish absence of exploitation.
RECORD STATUSMicrosoft vendor recordModified Aug 08, 2026

Disclosure summary

btrfs: reject free space cache with more entries than pages

Source-specific records & product guidance

Sources retain their own attribution and scoring. Follow the original record to confirm affected versions, fixed releases, and configuration conditions.

Microsoft Security Updates (CVRF) · 2026-Aug

Open original source · Updated Aug 08, 2026

btrfs: reject free space cache with more entries than pages

Maximum of vendor-reported product scores; products and fixed builds are associations, not a universal affected-version statement.

Microsoft maximum product score: 4.4

VendorProduct / associationVersion / bounds
Microsoft update guideazl3 kernel 6.6.145.2-1 on Azure Linux 3.0 (MSRC status code 3)

Vendor remediation references

  • CBL-Mariner Releases · build 6.6.150.1-1 · product IDs 21626-17084
  • Vendor guidance · product IDs 21626-17084

Original records & references

PUBLISHED 2026-08-08T21:43:07-04:00
MODIFIED 2026-08-08T21:43:07-04:00
INGESTED 2026-10-08T12:35:14-04:00