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Δ / VULNERABILITY RECORD

CVE-2026-31688.

Source-reported disclosure and enrichment record.

SEVERITY / CVSSHIGH / 7.8No severity score in this snapshot.
EXPLOITATION STATUSNot listed in the cached KEV catalogThis does not establish absence of exploitation.
RECORD STATUSMicrosoft vendor recordModified Aug 06, 2026

Disclosure summary

driver core: enforce device_lock for driver_match_device()

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-Apr

Open original source · Updated Aug 06, 2026

driver core: enforce device_lock for driver_match_device()

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

Microsoft maximum product score: 7.8

VendorProduct / associationVersion / bounds
Microsoft update guideazl3 kernel 6.6.130.1-3 on Azure Linux 3.0 (MSRC status code 3)
Microsoft update guideazl3 kernel 6.6.134.1-2 on Azure Linux 3.0 (MSRC status code 3)
Microsoft update guideazl3 kernel 6.6.137.1-2 on Azure Linux 3.0 (MSRC status code 3)
Microsoft update guideazl3 kernel 6.6.138.1-1 on Azure Linux 3.0 (MSRC status code 3)
Microsoft update guideazl3 kernel 6.6.139.1-1 on Azure Linux 3.0 (MSRC status code 3)

Original records & references

PUBLISHED 2026-04-28T21:01:38-04:00
MODIFIED 2026-08-06T20:21:09-04:00
INGESTED 2026-10-08T12:45:02-04:00