CVE-2023-31975

CVE-2023-31975 is a low-severity vulnerability in Yasm Project Yasm with a CVSS 3.x base score of 3.3. 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-401.

Key facts

• Severity: Low (CVSS 3.x base score 3.3)
• EPSS exploit prediction: 0% (37th percentile)
• Actively exploited: Not listed in CISA KEV
• Weakness: CWE-401
• Affected product: Yasm Project Yasm
• Published: 2023-05-09
• Last modified: 2026-06-17

Description

yasm v1.3.0 was discovered to contain a memory leak via the function yasm_intnum_copy at /libyasm/intnum.c. Note: Multiple third parties dispute this as a bug and not a vulnerability according to the YASM security policy.

Frequently asked questions

What is CVE-2023-31975?

yasm v1.3.0 was discovered to contain a memory leak via the function yasm_intnum_copy at /libyasm/intnum.c. Note: Multiple third parties dispute this as a bug and not a vulnerability according to the YASM security policy.

How severe is CVE-2023-31975?

CVE-2023-31975 has a CVSS 3.x base score of 3.3, rated low 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 low.

Is CVE-2023-31975 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (37th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-31975?

CVE-2023-31975 affects Yasm Project Yasm. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-31975?

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

When was CVE-2023-31975 published?

CVE-2023-31975 was published on 2023-05-09 and last updated on 2026-06-17.

References

• http://www.openwall.com/lists/oss-security/2023/06/20/6
• http://www.openwall.com/lists/oss-security/2023/06/21/10
• http://www.openwall.com/lists/oss-security/2023/06/21/13
• http://www.openwall.com/lists/oss-security/2023/06/21/2
• http://www.openwall.com/lists/oss-security/2023/06/21/5
• http://www.openwall.com/lists/oss-security/2023/06/21/7
• http://www.openwall.com/lists/oss-security/2023/06/21/8
• http://www.openwall.com/lists/oss-security/2023/06/21/9
• http://www.openwall.com/lists/oss-security/2023/06/22/1
• http://www.openwall.com/lists/oss-security/2023/06/22/3
• http://www.openwall.com/lists/oss-security/2023/06/22/6
• http://www.openwall.com/lists/oss-security/2023/06/23/1
• http://www.openwall.com/lists/oss-security/2023/06/23/2
• http://www.openwall.com/lists/oss-security/2023/06/23/4
• http://www.openwall.com/lists/oss-security/2023/06/23/8
• http://www.openwall.com/lists/oss-security/2023/06/23/9
• http://www.openwall.com/lists/oss-security/2023/06/24/1
• https://github.com/yasm/yasm/issues/210

Affected products (1)

• cpe:2.3:a:yasm_project:yasm:1.3.0:*:*:*:*:*:*:*

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