CVE-2025-51824

Name: CVE-2025-51824
Creator: NVD / NIST
Published: 2025-08-11T19:15:28.497+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.5/10EPSS 0.25%

Last modified Jun 17, 2026

CVE-2025-51824 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. libcsp 2.0 is vulnerable to Buffer Overflow in the csp_usart_open() function at drivers/usart/zephyr.c.. EPSS estimates a 0.25% chance of exploitation in the next 30 days.

Description

libcsp 2.0 is vulnerable to Buffer Overflow in the csp_usart_open() function at drivers/usart/zephyr.c.

Metrics

CVSS 3.1

6.5/10

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

EPSS Probability

0.25%

15.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-120

Affected Software

Vendor	Product	Versions
Libcsp	Libcsp	2.0

References

https://github.com/libcsp/libcsp/issues/851Issue Tracking
https://github.com/libcsp/libcsp/pull/853Patch

Timeline

Published: Aug 11, 2025
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2025-51824?

libcsp 2.0 is vulnerable to Buffer Overflow in the csp_usart_open() function at drivers/usart/zephyr.c.

How severe is CVE-2025-51824?

CVE-2025-51824 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 0.25% probability of exploitation in the next 30 days.

How do I fix CVE-2025-51824?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2025-51824?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST