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

Exp

KubeVirt is a virtual machine management add-on for Kubernetes. Prior to 1.7.0-beta.0, a logic flaw in the virt-controller allows an attacker to disrupt the control over a running VMI by creating a pod with the same labels as the legitimate virt-launcher pod associated with the VMI. This can mislead the virt-controller into associating the fake pod with the VMI, resulting in incorrect status updates and potentially causing a DoS (Denial-of-Service). This vulnerability is fixed in 1.7.0-beta.0.

Published: 2025-11-07 Last update: 2025-11-25 Assigner: [email protected] Source: [email protected]
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2025-64435 is rated Exploit Available (50/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.06%). 1 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2025-64435

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2025-64435

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-04-17 0.05% 0.06% +0.01%
2 2026-04-05 0.05% 0.05% -0.01%
3 2025-12-09 — 0.05% —

Full EPSS history (4 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2025-64435

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.3 3.1 MEDIUM
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:H)
Even with access, the exploit needs extra luck, timing, or a fussy environment to actually work.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 1.6 3.6 [email protected]

Weakness enumeration for CVE-2025-64435

GitHub Security Advisory for CVE-2025-64435

GHSA-9m94-w2vq-hcf9 · Severity: medium · Ecosystem: go — KubeVirt VMI Denial-of-Service (DoS) Using Pod Impersonation

OS Trackers for CVE-2025-64435

vendor priority summary link
redhat medium — https://access.redhat.com/security/cve/CVE-2025-64435
suse medium CVE-2025-64435 severity moderate: SUSE including 29 source package names (2.2.1-7.23:podman-5.4.2-slfo.1.1_2.1, containerized-data-importer, …), 90 product×package rows across 43 product lines (Container suse/sl-micro/6.1/baremetal-os-container, Image SL-Micro-Azure, … (43 product lines)): Known Not Affected 52, Fixed 37, First Fixed 1. https://www.suse.com/security/cve/CVE-2025-64435/

Affected software / configurations for CVE-2025-64435

Vendor Product Version Raw CPE
kubevirt kubevirt <= 1.6.3 cpe:2.3:a:kubevirt:kubevirt:*:*:*:*:*:kubernetes:*:*
kubevirt kubevirt 1.7.0 cpe:2.3:a:kubevirt:kubevirt:1.7.0:alpha0:*:*:*:kubernetes:*:*

References for CVE-2025-64435

cvelogic Threat Intelligence