How severe is CVE-2023-49557?

CVE-2023-49557 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2023-49557 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (35th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-49557?

CVE-2023-49557 affects Yasm Project Yasm. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-49557?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2023-49557 have an EU (EUVD) identifier?

Yes. CVE-2023-49557 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-53514.

When was CVE-2023-49557 published?

CVE-2023-49557 was published on 2024-01-03 and last updated on 2026-06-17.

CVE-2023-49557

CVE-2023-49557 is a medium-severity vulnerability in Yasm Project Yasm with a CVSS 3.x base score of 5.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-400.

Key facts

Severity: Medium (CVSS 3.x base score 5.5)
EPSS exploit prediction: 0% (35th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2023-53514
Weakness: CWE-400
Affected product: Yasm Project Yasm
Published: 2024-01-03
Last modified: 2026-06-17

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.

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 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2023-49557 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (35th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-49557?: CVE-2023-49557 affects Yasm Project Yasm. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-49557?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2023-49557 have an EU (EUVD) identifier?: Yes. CVE-2023-49557 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-53514.
When was CVE-2023-49557 published?: CVE-2023-49557 was published on 2024-01-03 and last updated on 2026-06-17.

References

https://github.com/yasm/yasm/issues/253

Affected products (1)

cpe:2.3:a:yasm_project:yasm:1.3.0.86.g9def:*:*:*:*:*:*:*

More vulnerabilities in Yasm Project Yasm

CVE-2023-31724 — High (CVSS 7.8): yasm 1.3.0.55.g101bc was discovered to contain a segmentation violation via the function do_directive at…
CVE-2023-49558 — Medium (CVSS 5.5): An issue in YASM 1.3.0.86.g9def allows a remote attacker to cause a denial of service via the expand_mmac_params…
CVE-2023-49556 — Medium (CVSS 5.5): Buffer Overflow vulnerability in YASM 1.3.0.86.g9def allows a remote attacker to cause a denial of service via the…
CVE-2023-49555 — Medium (CVSS 5.5): An issue in YASM 1.3.0.86.g9def allows a remote attacker to cause a denial of service via the expand_smacro function in…
CVE-2023-49554 — Medium (CVSS 5.5): Use After Free vulnerability in YASM 1.3.0.86.g9def allows a remote attacker to cause a denial of service via the…
CVE-2023-37732 — Medium (CVSS 5.5): Yasm v1.3.0.78 was found prone to NULL Pointer Dereference in /libyasm/intnum.c and /elf/elf.c, which allows the…

All CVEs affecting Yasm Project Yasm →

Other CWE-400 (Uncontrolled Resource Consumption) vulnerabilities

CVE-2026-46775 — Critical (CVSS 9.9): Vulnerability in Oracle REST Data Services (component: Core). Supported versions that are affected are 24.2.0-26.1.0.…
CVE-2025-61303 — Critical (CVSS 9.8): Hatching Triage Sandbox Windows 10 build 2004 (2025-08-14) and Windows 10 LTSC 2021(2025-08-14) contains a…
CVE-2025-43193 — Critical (CVSS 9.8): The issue was addressed with improved memory handling. This issue is fixed in macOS Sequoia 15.6, macOS Sonoma 14.7.7,…
CVE-2025-24269 — Critical (CVSS 9.8): The issue was addressed with improved memory handling. This issue is fixed in macOS Sequoia 15.4. An app may be able to…
CVE-2025-24264 — Critical (CVSS 9.8): The issue was addressed with improved memory handling. This issue is fixed in Safari 18.4, iOS 18.4 and iPadOS 18.4,…
CVE-2025-24260 — Critical (CVSS 9.8): The issue was addressed with improved memory handling. This issue is fixed in macOS Sequoia 15.4, macOS Sonoma 14.7.5,…

Browse all CWE-400 (Uncontrolled Resource Consumption) vulnerabilities →