CVE-2021-25741

high-risk
Published 2021-09-20

A security issue was discovered in Kubernetes where a user may be able to create a container with subpath volume mounts to access files & directories outside of the volume, including on the host filesystem.

Do I need to act?

!
33.0% chance of exploitation in next 30 days
EPSS score — higher than 67% of all CVEs
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
8
CVSS 8.8/10 High
NETWORK / LOW complexity

Affected Products (1)

Affected Vendors

Kubernetes

References (6)

Mitigation https://github.com/kubernetes/kubernetes/issues/104980
Mailing List https://groups.google.com/g/kubernetes-security-announce/c/nyfdhK24H7s
Third Party Advisory https://security.netapp.com/advisory/ntap-20211008-0006/
Mitigation https://github.com/kubernetes/kubernetes/issues/104980
Mailing List https://groups.google.com/g/kubernetes-security-announce/c/nyfdhK24H7s
Third Party Advisory https://security.netapp.com/advisory/ntap-20211008-0006/
51
/ 100
high-risk
Severity 30/34 · Critical
Exploitability 16/34 · Moderate
Exposure 5/34 · Minimal