CVE-2025-64436MediumMicrosoft CVSS 5.3CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Microsoft security update for CVE-2025-64436

Published
May 31, 2026
Last Modified
—

🔗 CVE IDs covered (1)

📋 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-2025-64436. This page also shows what EchelonGraph holds for CVE-2025-64436, 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 products9

  • azl3 kubevirt 1.5.0-5 on Azure Linux 3.0
  • azl3 kubevirt 1.5.3-2 on Azure Linux 3.0
  • cbl2 kubevirt 0.59.0-30 on CBL Mariner 2.0
  • cbl2 kubevirt 0.59.0-31 on CBL Mariner 2.0
  • cbl2 kubevirt 0.59.0-33 on CBL Mariner 2.0
  • cbl2 kubevirt 0.59.0-35 on CBL Mariner 2.0
  • cbl2 kubevirt 0.59.0-38
  • cbl2 kubevirt 0.59.0-38 on CBL Mariner 2.0
  • cbl2 kubevirt 0.59.0-38 on CBL-Mariner 2.0

✅ Updates Microsoft lists: 3 updates

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

KB articleUpdateFixed build
—Security Update1.6.3-1
—Security Update1.5.3-1
—Security Update—

🧭 EchelonGraph on CVE-2025-64436

EchelonGraph score
5.3 MEDIUM
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

KubeVirt is a virtual machine management add-on for Kubernetes. In 1.5.0 and earlier, the permissions granted to the virt-handler service account, such as the ability to update VMI and patch nodes, could be abused to force a VMI migration to an attacker-controlled node. This vulnerability could otherwise allow an attacker to mark all nodes as unschedulable, potentially forcing the migration or creation of privileged pods onto a compromised node.

Published by GitHub, Inc., the CVE Numbering Authority that assigned CVE-2025-64436, 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)