CVE-2023-31722: nasm netwide_assembler Out-of-bounds Write
CVSS: 7.8v3.1HighModified
AliasesUBUNTU-CVE-2023-31722DEBIAN-CVE-2023-31722
Published 17-05-2023Last modified 22-01-2025
Vulnerability summary
CVE-2023-31722 is a high (CVSS 7.8) Out-of-bounds Write vulnerability in nasm netwide_assembler. EPSS estimates a 0.35% chance of exploitation in the next 30 days, higher than 26.8% of scored vulnerabilities. 1 public exploit is recorded.
CVSS score
7.8/10
010
High · v3.1 (CVE.org)EPSS score
0.35%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference
Advisory lineage
Upstream 0 · Downstream 1 · Related 1Timeline
- 17-05-2023PublishedVulnerability first disclosed.
- 22-01-2025Last modifiedVulnerability information updated.
Description
There exists a heap buffer overflow in nasm 2.16.02rc1 (GitHub commit: b952891).
CVSS metrics
4 scores · 4 sources · 1 versionHigh 7.8Preferred score · CVE.org (CNA)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HSourcesAll 4 agree
- OSV · UbuntuEcosystem advisory · calculated7.8HighCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated7.8HighCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- NVDNIST7.8HighCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS trend
Probability
0.35%
Chance of exploitation in the next 30 days
Percentile
27%
Versus all other CVEs
30-day change
0.00 pp
From 0.35% on 20-09-2026
20-09-202620-10-2026
EPSS score0.35%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundExploit Reference (bugzilla.nasm.us)
Maturity: unknown
Weaknesses
CWE · root causeAffected systems
Debian1 product
- nasmAll versions (No fix recorded)
Nasm1 product
- netwide_assembler2.16.02:rc1
Ubuntu1 product
- nasm< 2.15.05-1ubuntu0.1~esm1 | < 2.16.01-1ubuntu0.1~esm1 | All versions (No fix recorded)
3 vendors · 3 products
