CVE-2021-4159

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

0.24% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 16.0% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

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

2022-08-24 15:10Z4 YR AGO

Last updated

2024-08-03 17:16Z2 YR AGO

Reserved

2021-12-23

Assigning CNA

redhat

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-202Exposure of Sensitive Information Through Data QueriesBase
• CWE-497Exposure of Sensitive System Information to an Unauthorized Control SphereBase

Data version

5.1

Document digest

31937812db9898a134849d7bff17113a01ded2fbf658766503d7dd2443f745b9

• bugzilla.redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=2036024x_refsource_MISC
• access.redhat.comhttps://access.redhat.com/security/cve/CVE-2021-4159x_refsource_MISC
• security-tracker.debian.orghttps://security-tracker.debian.org/tracker/CVE-2021-4159x_refsource_MISC
• git.kernel.orghttps://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=294f2fc6da27620a506e6c050241655459ccd6bdx_refsource_MISC
• lists.debian.org[debian-lts-announce] 20221002 [SECURITY] [DLA 3131-1] linux security updatehttps://lists.debian.org/debian-lts-announce/2022/10/msg00000.htmlmailing-listx_refsource_MLIST