CVE-2026-3381CriticalMicrosoft CVSS 9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Microsoft security update for CVE-2026-3381

Published
May 31, 2026
Last Modified
—

🔗 CVE IDs covered (1)

CVE-2026-3381 →

📋 Microsoft's advisory

EchelonGraph does not copy Microsoft's advisory page: its FAQ and remediation text are not shown here. Read the advisory on https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-3381. This page also shows what EchelonGraph holds for CVE-2026-3381, with the description from its CVE record, which the CVE Numbering Authority that assigned the CVE wrote: for a CVE Microsoft assigned, often in the words of Microsoft's own advisory.

🎯 Affected products14

  • azl3 cloud-hypervisor 48.0.246-3 on Azure Linux 3.0
  • azl3 erlang 26.2.5.17-1 on Azure Linux 3.0
  • azl3 kata-containers 3.19.1.kata2-6 on Azure Linux 3.0
  • azl3 rubygem-mini_portile2 2.8.4-1 on Azure Linux 3.0
  • azl3 tcl 8.6.13-3 on Azure Linux 3.0
  • azl3 zlib 1.3.1-1 on Azure Linux 3.0
  • cbl2 cloud-hypervisor 32.0-7 on CBL Mariner 2.0
  • cbl2 cloud-hypervisor-cvm 38.0.72.2-5 on CBL Mariner 2.0
  • cbl2 conda 4.11.0-1 on CBL Mariner 2.0
  • cbl2 erlang 25.3.2.21-4 on CBL Mariner 2.0
  • cbl2 rubygem-mini_portile2 2.8.0-1 on CBL Mariner 2.0
  • cbl2 rust 1.72.0-14 on CBL Mariner 2.0
  • cbl2 tcl 8.6.13-3 on CBL Mariner 2.0
  • cbl2 zlib 1.2.13-2 on CBL Mariner 2.0

✅ Updates Microsoft lists: 1 update

1 row: one per KB article or update, update type and fixed build. Their details are on Microsoft's advisory.

KB articleUpdateFixed build
—Security Update1.3.2-1

🧭 EchelonGraph on CVE-2026-3381

EchelonGraph score
9.8 CRITICAL
CISA KEV
Not listed
Fix status
A fix is available — apply it.

Description from the CVE record (CVE.org), as published by its numbering authority

Compress::Raw::Zlib versions through 2.219 for Perl use potentially insecure versions of zlib. Compress::Raw::Zlib includes a copy of the zlib library. Compress::Raw::Zlib version 2.220 includes zlib 1.3.2, which addresses findings fron the 7ASecurity audit of zlib. The includes fixs for CVE-2026-27171.

Published by CPAN Security Group, the CVE Numbering Authority that assigned CVE-2026-3381, in its CVE record at CVE.org; reused under the CVE Program's Terms of Use (its licence and MITRE's copyright notice are in our Terms of Service).

🔗 References (2)