CVE-2021-38208

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

0.49% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 40.5% 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 2026-06-17.

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

2021-08-08 19:22Z5 YR AGO

Last updated

2024-08-04 01:37Z2 YR 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-476NULL Pointer DereferenceBase

Data version

5.1

Document digest

dcfafce0759debab3dac860887eeb1eeeef51a8ca0b63b3c9f827793a5217d3a

• github.comhttps://github.com/torvalds/linux/commit/4ac06a1e013cf5fdd963317ffd3b968560f33bbax_refsource_MISC
• cdn.kernel.orghttps://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.12.10x_refsource_MISC
• www.openwall.com[oss-security] 20210817 Re: Linux kernel: nfc: null ptr dereference in llcp_sock_getnamehttp://www.openwall.com/lists/oss-security/2021/08/17/1mailing-listx_refsource_MLIST
• www.openwall.com[oss-security] 20210817 Re: Linux kernel: nfc: null ptr dereference in llcp_sock_getnamehttp://www.openwall.com/lists/oss-security/2021/08/17/2mailing-listx_refsource_MLIST
• bugzilla.redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=1992810x_refsource_CONFIRM
• www.openwall.com[oss-security] 20210824 Re: Linux kernel: nfc: null ptr dereference in llcp_sock_getnamehttp://www.openwall.com/lists/oss-security/2021/08/24/2mailing-listx_refsource_MLIST