Skip to content
Appaloosa Scout

KEV · Actively exploited

CVE-2023-38831

HIGH 7.8 KEV

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.

Attack vector : Local No privileges required
Show raw CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS 97.81% exploit likely percentile 99.9%

CISA Known Exploited Vulnerability

Added to KEV
2023-08-24
Remediation deadline
2023-09-14
Required action
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Ransomware
Yes, known ransomware campaign

Tracked apps referencing this CVE

For each app: the affected range, the fixing version, and where the tracked app stands today.

  • WinRAR Windows winget:RARLab.WinRAR
    Affected <6.23 Fixed in 6.23 Latest tracked 7.23.0 patched
Vulnerable CPE configurations (1)
Vendor Product Versions
rarlab winrar
All platforms (wildcard)
<6.23
View on NVD ↗ CISA KEV catalog ↗