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CVE-2023-53397

20
FAUCET Score

CVE-2023-53397 addresses an off-by-one error in the Linux kernel's modpost component, specifically within the is_executable_section() function, affecting Linux kernel versions. This vulnerability, rated Medium (CVSS 5.5), could lead to an out-of-bounds array access, potentially causing a denial of service (availability impact) with local access and low attack complexity. Currently, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this flaw.

Impacted Technologies

VendorProductVersion(s)CPE
>= 4.1, < 4.14.322CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 4.15, < 5.4.251CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.5, < 5.10.188CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.11, < 5.15.121CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.16, < 6.1.39CPE 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
0.14%
Probability of exploitation in next 30 days
EPSS Percentile
3.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0014 is in the 22nd 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

Patch Available

Vendor Patches (2)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: kernel-0:5.14.0-503.11.1.el9_5
View patch
redhatno patchvia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: kernel-rt

Vendor Advisories (1)

redhatCVE-2023-53397Moderate

kernel: modpost: fix off by one in is_executable_section()

Sep 18, 2025

References

git.kernel.org / stable/c/02dc8e8bdbe4412cfcf17ee3873e63fa5a55b957
Patch
git.kernel.org / stable/c/3a3f1e573a105328a2cca45a7cfbebabbf5e3192
Patch
git.kernel.org / stable/c/5e0424cd8a44b5f480feb06753cdf4e1f248d148
Patch
git.kernel.org / stable/c/7ee557590bac154d324de446d1cd0444988bd511
Patch
git.kernel.org / stable/c/8b2e77050b91199453bf19d0517b047b7339a9e3
Patch
git.kernel.org / stable/c/cade370efe2f9e2a79ea8587506ffe2b51ac6d2b
Patch
git.kernel.org / stable/c/cb0cdca5c979bc34c27602e2039562932c2591a4
Patch
git.kernel.org / stable/c/dd872d5576cc94528f427c7264c2c438928cc6d2
Patch