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Δ / VULNERABILITY RECORD

CVE-2026-55620.

Source-reported disclosure and enrichment record.

SEVERITY / CVSSHIGH / 7.5No severity score in this snapshot.
EXPLOITATION STATUSNot listed in the cached KEV catalogThis does not establish absence of exploitation.
RECORD STATUSMicrosoft vendor recordModified Aug 26, 2026

Disclosure summary

eml_parser: DoS via deeply nested parens in Received headers

Source-reported weakness categories

CWE-770

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 26, 2026

eml_parser: DoS via deeply nested parens in Received headers

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

Microsoft maximum product score: 7.5

VendorProduct / associationVersion / bounds
Microsoft update guideazl3 perl-XML-Parser 2.47-2 on Azure Linux 3.0 (MSRC status code 3)

Original records & references

PUBLISHED 2026-08-26T21:02:48-04:00
MODIFIED 2026-08-26T21:02:48-04:00
INGESTED 2026-10-08T12:35:14-04:00