CVE-2021-33452: nasm netwide_assembler
CVSS: 5.5v3.1MediumModified
AliasesUBUNTU-CVE-2021-33452DEBIAN-CVE-2021-33452
Published 26-07-2022Last modified 03-08-2024
Vulnerability summary
CVE-2021-33452 is a medium (CVSS 5.5) vulnerability in nasm netwide_assembler. EPSS estimates a 0.33% chance of exploitation in the next 30 days, higher than 24.3% of scored vulnerabilities. 1 public exploit is recorded.
CVSS score
5.5/10
010
Medium · v3.1 (NVD)EPSS score
0.33%
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 2 · Related 2Timeline
- 26-07-2022PublishedVulnerability first disclosed.
- 03-08-2024Last modifiedVulnerability information updated.
Description
An issue was discovered in NASM version 2.16rc0. There are memory leaks in nasm_malloc() in nasmlib/alloc.c.
CVSS metrics
3 scores · 3 sources · 1 versionMedium 5.5Preferred score · NVD (NIST)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:HSourcesAll 3 agree
- OSV · UbuntuEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
EPSS trend
Probability
0.33%
Chance of exploitation in the next 30 days
Percentile
24%
Versus all other CVEs
30-day change
0.00 pp
From 0.33% on 19-09-2026
19-09-202619-10-2026
EPSS score0.33%
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:rc0
Ubuntu1 product
- nasmAll versions (No fix recorded)
3 vendors · 3 products
References
7 links- bugzilla.nasm.us/show_bug.cgi?id=3392757X Refsource MISCREPORTExploitIssue TrackingThird Party Advisory
