CVE-2023-31102: 7-zip Integer Underflow (Wrap or Wraparound)
CVSS: 7.8v3.1HighModified
AliasesUBUNTU-CVE-2023-31102DEBIAN-CVE-2023-31102
Published 03-11-2023Last modified 06-09-2024
Vulnerability summary
CVE-2023-31102 is a high (CVSS 7.8) Integer Underflow (Wrap or Wraparound) vulnerability in 7-zip. EPSS estimates a 55.21% chance of exploitation in the next 30 days, higher than 99% of scored vulnerabilities.
CVSS score
7.8/10
010
High · v3.1 (CVE.org)EPSS score
55.21%
0%100%
Critical · -1.92 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 03-11-2023PublishedVulnerability first disclosed.
- 06-09-2024Last modifiedVulnerability information updated.
Description
Ppmd7.c in 7-Zip before 23.00 allows an integer underflow and invalid read operation via a crafted 7Z archive.
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
55.21%
Chance of exploitation in the next 30 days
Percentile
99%
Versus all other CVEs
30-day change
-1.92 pp
From 57.14% on 22-09-2026
22-09-202622-10-2026
EPSS score55.21%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Debian2 products
- 7zip< 22.01+really25.01+dfsg-0+deb12u1 | < 23.01+dfsg-1
- p7zip< 16.02+really25.01+dfsg-0+deb12u1 | < 16.02+transitional.1
Netapp2 products
7-zip1 product
- 7-zip< 22.01
Ubuntu1 product
- 7zipAll versions (No fix recorded)
4 vendors · 6 products
References
8 links- www.7-zip.org/download.htmlProduct
- security.netapp.com/advisory/ntap-20231110-0007/Third Party Advisory
