peter bassill · operator
$ cve CVE-2023-38831 JSON

CVE-2023-38831 KEV

7.8
HIGH · CVSS 3.1 · EPSS 99.8% (pctl 100)

Patch first

On CISA KEV — known exploited in the wild, due 2023-09-14.

Description

RARLAB WinRAR before 6.23 allows attackers to execute arbitrary code when a user attempts to view a benign file within a ZIP archive. The issue occurs because a ZIP archive may include a benign file (such as an ordinary .JPG file) and also a folder that has the same name as the benign file, and the contents of the folder (which may include executable content) are processed during an attempt to access only the benign file. This was exploited in the wild in April through October 2023.

Scoring

CVSS7.8 (HIGH, v3.1)
VectorCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS99.82% — more likely to be exploited than 100% of all CVEs
WeaknessCWE-345
On CISA KEVyes — remediate by 2023-09-14
Public exploitnone known
Published2023-08-23
Last modified2026-08-05

CISA KEV

NameRARLAB WinRAR Code Execution Vulnerability
Added2023-08-24
Due2023-09-14
Vendor / productRARLAB / WinRAR
Ransomware useknown

Affected (1)

VendorProduct
rarlabwinrar

References

→ the Explorer  ·  watch your stack  ·  NVD