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CVE-2023-53346

20
FAUCET Score

CVE-2023-53346 is a memory leak vulnerability affecting the Linux kernel, specifically within the kernel/fail_function component. The issue arises from a failure to call dput() after debugfs_lookup(), leading to memory exhaustion over time. Rated 5.5 Medium, this vulnerability has a local attack vector, low attack complexity, and a high impact on availability. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 5.4.235CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.5, < 5.10.173CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.11, < 5.15.100CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.16, < 6.1.18CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 6.2, < 6.2.5CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.5MEDIUM

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.18%
Probability of exploitation in next 30 days
EPSS Percentile
8.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0019 is in the 43rd percentile among its peer group of 15,940 CVEs.

Social Chatter

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

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Advisories (1)

redhatCVE-2023-53346

kernel: kernel/fail_function: fix memory leak with using debugfs_lookup()

Sep 17, 2025

References

git.kernel.org / stable/c/29d53c4c5a6f6d2b93aaac95b65cb4c907faf2ff
Patch
git.kernel.org / stable/c/2bb3669f576559db273efe49e0e69f82450efbca
Patch
git.kernel.org / stable/c/94f68f3e059c478e240f65fcb64746fe371295df
Patch
git.kernel.org / stable/c/bb99db06b8b6ce9351633fc61bec9919d8f6f52b
Patch
git.kernel.org / stable/c/dd9981a11d74ff2eb253bb5c459876f8bd3c6c36
Patch
git.kernel.org / stable/c/f6d3aee1c66358471275df9dddd480010f061b0e
Patch