CVE-2021-45469

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

0.56% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 46.8% of scored records. A rank, not a probability.

NVD base score

7.8 (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:H/I:H/A:H

NVD analysis status

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

Red Hat severity

Important. 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

2021-12-23 18:45Z4 YR AGO

Last updated

2024-08-04 04:39Z2 YR AGO

Reserved

2021-12-23

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-125Out-of-bounds ReadBase

Data version

5.1

Document digest

6ef214ea778cf737f004b3db1c9c0ae00e82765b23a0354c4f703d787e4d7e5d

• bugzilla.kernel.orghttps://bugzilla.kernel.org/show_bug.cgi?id=215235x_refsource_MISC
• git.kernel.orghttps://git.kernel.org/pub/scm/linux/kernel/git/chao/linux.git/commit/?h=dev&id=5598b24efaf4892741c798b425d543e4bed357a1x_refsource_MISC
• www.openwall.com[oss-security] 20211224 CVE-2021-45469: Linux kernel: an out-of-bounds memory access in fs/f2fs/xattr.c __f2fs_setxattrhttp://www.openwall.com/lists/oss-security/2021/12/25/1mailing-listx_refsource_MLIST
• lists.fedoraproject.orgFEDORA-2021-a7a558062ehttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QG7XV2WXKMSMKIQKIBG5LW3Y3GXEWG5Q/vendor-advisoryx_refsource_FEDORA
• lists.fedoraproject.orgFEDORA-2021-c387682aa1https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AK2C4A43BZSWATZWFUHHHUQF3HPIALNP/vendor-advisoryx_refsource_FEDORA
• security.netapp.comhttps://security.netapp.com/advisory/ntap-20220114-0003/x_refsource_CONFIRM
• www.debian.orgDSA-5050https://www.debian.org/security/2022/dsa-5050vendor-advisoryx_refsource_DEBIAN
• lists.debian.org[debian-lts-announce] 20220309 [SECURITY] [DLA 2941-1] linux-4.19 security updatehttps://lists.debian.org/debian-lts-announce/2022/03/msg00012.htmlmailing-listx_refsource_MLIST
• www.debian.orgDSA-5096https://www.debian.org/security/2022/dsa-5096vendor-advisoryx_refsource_DEBIAN