CVE-2025-64324: KubeVirt Vulnerable to Arbitrary Host File Read and Write
Vulnerability summary
CVE-2025-64324 is a high (CVSS 8.5) vulnerability in kubevirt. EPSS estimates a 0.24% chance of exploitation in the next 30 days, higher than 15.1% of scored vulnerabilities. 1 public exploit is recorded.
Public exploit (GitHub, Date unknown)
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 6 · Related 7Timeline
- 18-11-2025PublishedVulnerability first disclosed.
- 26-02-2026Last modifiedVulnerability information updated.
Description
KubeVirt is a virtual machine management add-on for Kubernetes. The `hostDisk` feature in KubeVirt allows mounting a host file or directory owned by the user with UID 107 into a VM. However, prior to version 1.6.1 and 1.7.0, the implementation of this feature and more specifically the `DiskOrCreate` option (which creates a file if it doesn't exist) has a logic bug that allows an attacker to read and write arbitrary files owned by more privileged users on the host system. Versions 1.6.1 and 1.7.0 fix the issue.
CVSS metrics
7 scores · 5 sources · 2 versions- OSV · WolfiEcosystem advisory · calculated8.5HighCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
- OSV · GoEcosystem advisory · calculated8.5HighCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
- OSV · ChainguardEcosystem advisory · calculated8.5HighCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
- NVDNIST8.5HighCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
- NVDNIST7.7HighCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
EPSS trend
Probability
0.24%
Chance of exploitation in the next 30 days
Percentile
15%
Versus all other CVEs
30-day change
Increase +0.02 pp
From 0.22% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
1 foundKubevirt
Maturity: poc
Weaknesses
CWE · root cause- CWE-200Exposure of Sensitive Information to an Unauthorized ActorThe product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.
- CWE-732Incorrect Permission Assignment for Critical ResourceThe product specifies permissions for a security-critical resource in a way that allows that resource to be read or modified by unintended actors.
Affected systems
Known conditions: local access, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.
Chainguard16 products
- docker-machine-driver-harvester< 1.0.6-r4
- virt-api-1.6< 1.6.4-r0
- virt-api-fips-1.6< 1.6.4-r0
- virt-chroot-1.6< 1.6.4-r0
- virt-chroot-fips-1.6< 1.6.4-r0
Kubevirt1 product
- kubevirt≥ 1.7.0-alpha.0, < 1.7.0-rc.0 | < 1.6.1 | 1.7.0:alpha0 | 1.7.0:beta0
Kubevirt.io1 product
- kubevirt< 1.6.1 | ≥ 1.7.0-alpha.0, < 1.7.0-rc.0 | ≥ 1.6.2, < 1.7.0-rc.0
Wolfi1 product
- docker-machine-driver-harvester< 1.0.6-r4
4 vendors · 19 products
References
7 links- github.com/kubevirt/kubevirt/security/advisories/GHSA-46xp-26xh-hpqhAdvisoryWEBExploitVendor Advisory
- github.com/kubevirt/kubevirtPACKAGE