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CVE-2023-53608

24
FAUCET Score

CVE-2023-53608 is a Use-After-Free (UAF) vulnerability in the nilfs2 filesystem module of the Linux kernel. This flaw arises from a race condition during the finalization of the nilfs_segctor_thread, potentially leading to a system crash or other undefined behavior. With a CVSS score of 7.8 (High), it can be exploited locally with low attack complexity, potentially leading to high impact on confidentiality, integrity, and availability. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
>= 2.6.30, < 4.14.313CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 4.15, < 4.19.281CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 4.20, < 5.4.241CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.5, < 5.10.178CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.11, < 5.15.107CPE 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
0.14%
Probability of exploitation in next 30 days
EPSS Percentile
3.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0014 is in the 17th 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 Advisories (1)

redhatCVE-2023-53608

kernel: nilfs2: fix potential UAF of struct nilfs_sc_info in nilfs_segctor_thread()

Oct 4, 2025

References

git.kernel.org / stable/c/034cce77d52ba013ce62b4f5258c29907eb1ada5
Patch
git.kernel.org / stable/c/0dbf0e64b91ee8fcb278aea93eb06fc7d56ecbcc
Patch
git.kernel.org / stable/c/613bf23c070d11c525268f2945aa594704a9b764
Patch
git.kernel.org / stable/c/6be49d100c22ffea3287a4b19d7639d259888e33
Patch
git.kernel.org / stable/c/92684e02654c91a61a0b0561433b710bcece19fe
Patch
git.kernel.org / stable/c/b4d80bd6370b81a1725b6b8f7894802c23a14e9f
Patch
git.kernel.org / stable/c/bae009a2f1b7c2011d2e92d8c84868d315c0b97e
Patch
git.kernel.org / stable/c/f32297dba338dc06d62286dedb3cdbd5175b1719
Patch