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Vulnerabilities CVE-2023-38831

CVE-2023-38831

Medium
Open
KEV
TLP:CLEAR

RARLAB WinRAR Code Execution Vulnerability

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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.

Details

EPSS Score
97.81%

99.9th percentile

Confidence
100%
Published
Aug 23, 2023
Last Modified
Aug 5, 2026
CISA KEV
Date Added
Aug 24, 2023
Patch Due
Sep 14, 2023
Used in ransomware campaigns
Required Action
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
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