CVE-2023-31722
CVE-2023-31722 is a high-severity vulnerability in Nasm Netwide Assembler with a CVSS 3.x base score of 7.8. 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-787.
Key facts
- Severity: High (CVSS 3.x base score 7.8)
- EPSS exploit prediction: 0% (27th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-787
- Affected product: Nasm Netwide Assembler
- Published:
- Last modified:
Description
There exists a heap buffer overflow in nasm 2.16.02rc1 (GitHub commit: b952891).
Frequently asked questions
- What is CVE-2023-31722?
- There exists a heap buffer overflow in nasm 2.16.02rc1 (GitHub commit: b952891).
- How severe is CVE-2023-31722?
- CVE-2023-31722 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2023-31722 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (27th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2023-31722?
- CVE-2023-31722 affects Nasm Netwide Assembler. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2023-31722?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- When was CVE-2023-31722 published?
- CVE-2023-31722 was published on 2023-05-17 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:nasm:netwide_assembler:2.16.02:rc1:*:*:*:*:*:*
More vulnerabilities in Nasm Netwide Assembler
- CVE-2004-1287 — Critical (CVSS 10.0): Buffer overflow in the error function in preproc.c for NASM 0.98.38 1.2 allows attackers to execute arbitrary code via…
- CVE-2020-24978 — Critical (CVSS 9.8): In NASM 2.15.04rc3, there is a double-free vulnerability in pp_tokline asm/preproc.c. This is fixed in commit…
- CVE-2026-6068 — Critical (CVSS 9.6): NASM contains a heap use after free vulnerability in response file (-@) processing where a dangling pointer to freed…
- CVE-2008-7177 — Critical (CVSS 9.3): Buffer overflow in the listing module in Netwide Assembler (NASM) before 2.03.01 has unknown impact and attack vectors,…
- CVE-2022-44370 — High (CVSS 7.8): NASM v2.16 was discovered to contain a heap buffer overflow in the component quote_for_pmake() asm/nasm.c:856
- CVE-2019-8343 — High (CVSS 7.8): In Netwide Assembler (NASM) 2.14.02, there is a use-after-free in paste_tokens in asm/preproc.c.
All CVEs affecting Nasm Netwide Assembler →
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