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Δ / VULNERABILITY RECORD

CVE-2026-3549.

Source-reported disclosure and enrichment record.

SEVERITY / CVSSUnscoredNo severity score in this snapshot.
EXPLOITATION STATUSNot listed in the cached KEV catalogThis does not establish absence of exploitation.
RECORD STATUSMicrosoft vendor recordModified Mar 26, 2026

Disclosure summary

ECH parsing heap buffer overflow

Source-reported weakness categories

CWE-122

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-Mar

Open original source · Updated Mar 26, 2026

ECH parsing heap buffer overflow

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

VendorProduct / associationVersion / bounds
Microsoft update guideazl3 mariadb 10.11.16-1 on Azure Linux 3.0 (MSRC status code 3)
Microsoft update guidecbl2 mariadb 10.6.24-1 on CBL Mariner 2.0 (MSRC status code 3)

Original records & references

PUBLISHED 2026-03-24T21:04:27-04:00
MODIFIED 2026-03-26T21:42:32-04:00
INGESTED 2026-10-08T12:45:11-04:00