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CVE-2023-53301

23
FAUCET Score

CVE-2023-53301 is a kernel NULL pointer dereference vulnerability in the Linux kernel's F2FS filesystem, specifically within the __submit_merged_write_cond function. This flaw can lead to a kernel panic and system crash if the io->bio pointer is null, affecting systems utilizing the F2FS filesystem. Rated 7.1 HIGH (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H), it requires local access but has a high impact on confidentiality 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
>= 5.18, < 6.1.16CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 6.2, < 6.2.3CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.1HIGH

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
5.2
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.14%
Probability of exploitation in next 30 days
EPSS Percentile
3.5%
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 16th 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-2023-53301

kernel: f2fs: fix kernel crash due to null io->bio

Sep 16, 2025

References

git.kernel.org / stable/c/267c159f9c7bcb7009dae16889b880c5ed8759a8
Patch
git.kernel.org / stable/c/83dbb9a1bd5ef2eea73275906fc50b2fdda39cd5
Patch
git.kernel.org / stable/c/eb52f13c6093ac761dbeaa459c810fc0253209fc
Patch