Integer overflow in 7-Zip
CVE-2023-31102
Ppmd7.c in 7-Zip before 23.00 allows an integer underflow and invalid read operation via a crafted 7Z archive.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.552 (99.0th percentile), scored .
High probability of exploitation in the next 30 days — patch promptly. 99th percentile — 99.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.571 · newest: 0.552 · change: -0.019
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.7-zip.org/download.html (Product)
- www.zerodayinitiative.com/advisories/ZDI-23-1165/ (VDB Entry, Third Party Advisory)
- sourceforge.net/p/sevenzip/discussion/45797/thread/713c8a8269/ (Release Notes, Issue Tracking)
- security.netapp.com/advisory/ntap-20231110-0007/ (Third Party Advisory)
- ds-security.com/post/integer-overflow-in-7-zip-cve-2023-31102/
Frequently asked questions
- What is CVE-2023-31102?
- CVE-2023-31102 is a high-severity vulnerability in 7-Zip, classified under Integer Underflow. CVSS score: 7.8/10. Published 2023-11-03.
- How severe is CVE-2023-31102?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2023-31102 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.