CVE-2023-31102
7.8
HIGH
CVSS 3.1
EPSS 54.7%
Description
Ppmd7.c in 7-Zip before 23.00 allows an integer underflow and invalid read operation via a crafted 7Z archive.
How to fix CVE-2023-31102
To remediate CVE-2023-31102, upgrade the affected package to a fixed version below.
- Debian/7zip—upgrade to 22.01+really25.01+dfsg-0+deb12u1 or later
- Debian/p7zip—upgrade to 16.02+really25.01+dfsg-0+deb11u1 or later
Is CVE-2023-31102 being exploited?
Likely — EPSS is 54.7%, placing CVE-2023-31102 in the top tier of vulnerabilities by exploitation probability. Prioritise patching.
Affected packages (2)
- from 0, < 22.01+really25.01+dfsg-0+deb12u1
- from 0, < 16.02+really25.01+dfsg-0+deb11u1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.8 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |