# CVE-2025-64435: KubeVirt VMI Denial-of-Service (DoS) Using Pod Impersonation

CVE-2025-64435 is fixed in 2 products on 1 platform, first by SUSE-SU-2026:0479-1, released February 12, 2026. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2025-64435
- Priority: Routine
- CVSS: 5.3 (Moderate)
- EPSS: 0.0041
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Dec 6, 2025
- Weakness: Improper Check or Handling of Exceptional Conditions
- Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-64435

## Description

This update for kubevirt, virt-api-container, virt-controller-container, virt-exportproxy-container, virt-exportserver-container, virt-handler-container, virt-launcher-container, virt-libguestfs-tools-container, virt-operator-container, virt-pr-helper-container, virt-synchronization-controller-container fixes the following issues:  Update to version 1.7.0. (bsc#1257128)    Release notes https://github.com/kubevirt/kubevirt/releases/tag/v1.7.0  - CVE-2025-64435: Fixes logic flaw in the virt-controller can lead to incorrect status updates and potentially causing a DoS (bsc#1253189 ) - CVE-2024-45310: Fixes kubevirt vendored github.com/opencontainers/runc/libcontainer/utils: runc can be tricked into creating empty files/directories on host bsc#1257422   - Upstream now uses stateless firmware for CoCo VMs.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | govulncheck-vulndb opensuse-leap 16.0 | 0.0.20260723T184607-160000.1.1 | [OPENSUSE-SU-2026:21483-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-21483-1.md) | Jul 30, 2026 |
| Linux | kubevirt sles 15.7 | 1.7.0-150700.3.16.2 | [SUSE-SU-2026:0479-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-0479-1.md) | Feb 12, 2026 |

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Data as of 2026-11-10T20:03:11Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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