CVE-2023-53397

MEDIUM

Published Sep 18, 2025 Modified Jan 14, 2026 CWE-193

Description

In the Linux kernel, the following vulnerability has been resolved: modpost: fix off by one in is_executable_section() The > comparison should be >= to prevent an out of bounds array access.

Is your site exposed to CVE-2023-53397?

Run a free security scan — no signup, results in seconds.

CVSS v3.1 Score

5.5

MEDIUM

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

Weakness Type (CWE)

CWE-193 CWE-193

Affected Products

Vendor	Product	Versions
linux	linux_kernel	4.1 — 4.14.322
linux	linux_kernel	4.15 — 5.4.251
linux	linux_kernel	5.5 — 5.10.188
linux	linux_kernel	5.11 — 5.15.121
linux	linux_kernel	5.16 — 6.1.39
linux	linux_kernel	6.2 — 6.3.13
linux	linux_kernel	6.4 — 6.4.4

References

Advisories & Patches

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

Frequently Asked Questions

What is CVE-2023-53397? +

In the Linux kernel, the following vulnerability has been resolved: modpost: fix off by one in is_executable_section() The > comparison should be >= to prevent an out of bounds array access. It has a CVSS v3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2023-53397? +

CVE-2023-53397 has a CVSS v3.1 score of 5.5 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2023-53397? +

CVE-2023-53397 affects products from linux, specifically: linux_kernel. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2023-53397? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

Related Vulnerabilities

CVE-2026-52804

Gogs is an open source self-hosted Git service. Prior to 0.14.3, a repository admin collaborator can escalate their privileges to …

CVE-2026-8357

LibreOffice Calc compiles cell formulas when opening a spreadsheet. A heap buffer overflow existed when compiling a very long formula …

CVE-2024-10442 10.0

Off-by-one error vulnerability in the transmission component in Synology Replication Service before 1.0.12-0066, 1.2.2-0353 and 1.3.0-0423 and Synology Unified Controller …

CVE-2024-38441 9.8

Netatalk before 3.2.1 has an off-by-one error and resultant heap-based buffer overflow because of setting ibuf[len] to '\0' in FPMapName …

CVE-2026-48689 9.8

FastNetMon Community Edition through 1.2.9 contains an off-by-one heap-based buffer overflow in the dynamic_binary_buffer_t class (src/dynamic_binary_buffer.hpp). Five methods (append_dynamic_buffer, append_data_as_pointer, …

CVE-2024-51554 9.1

Default Credentail vulnerabilities in ASPECT on Linux allows access to the product using publicly available default credentials. Affected products: ABB …

Quick Facts

CVSS Score: 5.5
Severity: MEDIUM
Published: Sep 18, 2025

Scan for this vulnerability

Check if your website or infrastructure is affected by CVE-2023-53397.

Website Scan Port Scan

Browse CVEs

Critical High CISA KEV ! Most likely exploited →