CVE-2023-49557

Name: CVE-2023-49557
Creator: NVD / NIST
Published: 2024-01-03T00:15:09.147+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.5/10EPSS 0.43%

Last modified Jun 17, 2026

CVE-2023-49557 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. An issue in YASM 1.3.0.86.g9def allows a remote attacker to cause a denial of service via the yasm_section_bcs_first function in the libyasm/section.c component.. EPSS estimates a 0.43% chance of exploitation in the next 30 days.

Description

An issue in YASM 1.3.0.86.g9def allows a remote attacker to cause a denial of service via the yasm_section_bcs_first function in the libyasm/section.c component.

Metrics

CVSS 3.1

5.5/10

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

EPSS Probability

0.43%

34.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-400

Affected Software

Vendor	Product	Versions
Yasm Project	Yasm	1.3.0.86.g9def

References

https://github.com/yasm/yasm/issues/253Exploit, Vendor Advisory
https://github.com/yasm/yasm/issues/253Exploit, Vendor Advisory

Timeline

Published: Jan 3, 2024
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-49557?

An issue in YASM 1.3.0.86.g9def allows a remote attacker to cause a denial of service via the yasm_section_bcs_first function in the libyasm/section.c component.

How severe is CVE-2023-49557?

CVE-2023-49557 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 0.43% probability of exploitation in the next 30 days.

How do I fix CVE-2023-49557?

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-2023-49557?

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

Scan your code now

Source: NVD / NIST