What is CVE-2026-4176?

CVE-2026-4176 is a security advisory published by Microsoft Security Response Center (MSRC) with Critical severity. Perl versions from 5.9.4 before 5.40.4-RC1, from 5.41.0 before 5.42.2-RC1, from 5.43.0 before 5.43.9 contain a vulnerable version of Compress::Raw::Zlib

Which CVE IDs does CVE-2026-4176 cover?

CVE-2026-4176 covers the following CVE IDs: CVE-2026-4176. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of CVE-2026-4176?

CVE-2026-4176 has a CVSS v3 base score of 9.8, published by Microsoft Security Response Center (MSRC).

CVE-2026-4176CriticalCVSS 9.8

Perl versions from 5.9.4 before 5.40.4-RC1, from 5.41.0 before 5.42.2-RC1, from 5.43.0 before 5.43.9 contain a vulnerable version of Compress::Raw::Zlib

Vendor

Microsoft Security Response Center (MSRC)

Published

May 31, 2026

Last Modified

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🔗 CVE IDs covered (1)

CVE-2026-4176 →