CVE-2021-38198

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

• ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.45% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 38.8% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

NVD analysis status

Modified. NVD last modified this record on 2026-10-08.

Red Hat severity

Low. 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

2021-08-08 19:28Z5 YR AGO

Last updated

2026-10-08 21:03Z21 DAYS AGO

Reserved

2021-08-08

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-732Incorrect Permission Assignment for Critical ResourceClass

Data version

5.2

Document digest

be403b6efcc2978887a3f5825674118adae72c8ca0e7093708e099d7092860c1

• github.comhttps://github.com/torvalds/linux/commit/b1bd5cba3306691c771d558e94baa73e8b0b96b7x_refsource_MISC
• cdn.kernel.orghttps://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.12.11x_refsource_MISC
• lists.debian.org[debian-lts-announce] 20211015 [SECURITY] [DLA 2785-1] linux-4.19 security updatehttps://lists.debian.org/debian-lts-announce/2021/10/msg00010.htmlmailing-listx_refsource_MLIST
• lists.debian.org[debian-lts-announce] 20211216 [SECURITY] [DLA 2843-1] linux security updatehttps://lists.debian.org/debian-lts-announce/2021/12/msg00012.htmlmailing-listx_refsource_MLIST