CVE-2023-31102

Ppmd7.c in 7-Zip before 23.00 allows an integer underflow and invalid read operation via a crafted 7Z archive

High · published November 3, 2023

Patch now

High probability of exploitation

CVSS calls it high at 7.8. It sits in the 99.0th percentile for exploit probability.

CVSS v3.1
7.8
EPSS
55%
Percentile
99.0
In the wild
Unconfirmed
What it is

Ppmd7.c in 7-Zip before 23.00 allows an integer underflow and invalid read operation via a crafted 7Z archive.

The record
Technical detail
CVSS v3.1
7.8 · HIGH
Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.55211 · 99.0th percentile
Published
2023-11-03T00:00Z
EPSS history
Timeline
  • 03 NOV 00:00Z
    Ppmd7.c in 7-Zip before 23.00 allows an integer underflow and invalid read operation via a crafted 7Z archive
    cvelistv5