CVE-2021-44879

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

1.23% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 66.9% 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:N/UI:R/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

2022-02-13 00:00Z4 YR AGO

Last updated

2024-08-04 04:32Z2 YR AGO

Reserved

2021-12-13

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

be308f566162c42d10327011e9e98033d80ce2a4b906aaca46bde03f53c64c0f

• cdn.kernel.orghttps://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.16.3
• bugzilla.kernel.orghttps://bugzilla.kernel.org/show_bug.cgi?id=215231
• lore.kernel.orghttps://lore.kernel.org/linux-f2fs-devel/20211206144421.3735-3-chao%40kernel.org/T/
• git.kernel.orghttps://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=9056d6489f5a41cfbb67f719d2c0ce61ead72d9f
• lists.debian.org[debian-lts-announce] 20240111 [SECURITY] [DLA 3710-1] linux security updatehttps://lists.debian.org/debian-lts-announce/2024/01/msg00004.htmlmailing-list
• lists.debian.org[debian-lts-announce] 20240111 [SECURITY] [DLA 3711-1] linux-5.10 security updatehttps://lists.debian.org/debian-lts-announce/2024/01/msg00005.htmlmailing-list