CVE-2021-25735

Exploitation

Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.

SSVC decision

Not assessed by CISA

EPSS probability

5.37% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 92.4% of scored records. A rank, not a probability.

NVD base score

6.5 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H

NVD analysis status

Modified. NVD last modified this record on 2026-06-17.

Red Hat severity

Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2021-09-06 11:32Z5 YR AGO

Last updated

2024-09-16 23:40Z2 YR AGO

Reserved

2021-01-21

Assigning CNA

kubernetes

Record state

PUBLISHED

Severity

Medium (CVSS 6.5)

CNA CVSS vector

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H

Weaknesses

• CWE-372Incomplete Internal State DistinctionBase
• CWE-20Improper Input ValidationClass

Data version

5.1

Document digest

503944244a1426a50ac480cbf0d8c3077b495ef7a0d5e71b554555c98fe95dc2

• groups.google.comhttps://groups.google.com/g/kubernetes-security-announce/c/FKAGqT4jx9Yx_refsource_MISC
• github.comhttps://github.com/kubernetes/kubernetes/issues/100096x_refsource_MISC