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CVE-2022-50432

25
FAUCET Score

CVE-2022-50432 is a use-after-free vulnerability in the Linux kernel's kernfs component, specifically in the __kernfs_remove function. This flaw can be triggered by concurrent calls to kernfs_remove_by_name_ns() for the same file, leading to system instability. It affects the Linux kernel. The vulnerability has a CVSSv3.1 score of 7.8 (High), indicating a significant risk. It is a local attack (AV:L) with low attack complexity (AC:L) and requires low privileges (PR:L). Successful exploitation could lead to high confidentiality, integrity, and availability impacts (C:H/I:H/A:H). There is currently no evidence of active exploitation, and no public exploit code (Metasploit, Nuclei, ExploitDB) is available. Community discussion and media coverage for this CVE are minimal, suggesting low public awareness or attention.

Impacted Technologies

VendorProductVersion(s)CPE
>= 3.14, < 4.9.332CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 4.10, < 4.14.298CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 4.15, < 4.19.264CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 4.20, < 5.4.223CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.5, < 5.10.153CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.8HIGH

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.15%
Probability of exploitation in next 30 days
EPSS Percentile
4.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0015 is in the 21st percentile among its peer group of 17,070 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (6)

redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: kernel
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: kernel-rt
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: kernel
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: kernel-rt
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: kernel
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: kernel-rt

Vendor Advisories (1)

redhatCVE-2022-50432Low

kernel: kernfs: fix use-after-free in __kernfs_remove

Oct 1, 2025

References

git.kernel.org / stable/c/028cf780743eea79abffa7206b9dcfc080ad3546
Patch
git.kernel.org / stable/c/02eb35131050735332658029082f61515b7dfe38
Patch
git.kernel.org / stable/c/4abc99652812a2ddf932f137515d5c5a04723538
Patch
git.kernel.org / stable/c/4dfd6a477a1525773469feaf3c514b2c0fef76b5
Patch
git.kernel.org / stable/c/6f72a3977ba9d0e5491a5c01315204272e7f9c44
Patch
git.kernel.org / stable/c/94d2643df1e70a4c310ebb5e2c493eec33df1a06
Patch
git.kernel.org / stable/c/af1b57cc39beca203559576b3046094fc9e5eb32
Patch
git.kernel.org / stable/c/c78b0dc6fb7fb389d674e491fd376388cdfb1d53
Patch