CVE-2023-38831
CVSS v3
7.8
HIGH
EPSS Score
93.8 %
exploit probability
CISA KEV
Yes
known exploited
Exploitation
—
SSVC status
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.
CISA Known Exploited Vulnerability
- Date Added
- 2023-08-24
- Patch Due Date
- 2023-09-14
- Ransomware Use
- Known
Technical details
- Published
- 2023-08-23
Frequently asked questions
What is CVE-2023-38831?
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.
Is CVE-2023-38831 actively exploited?
Yes. CVE-2023-38831 is on the CISA Known Exploited Vulnerabilities (KEV) catalog, meaning it has been confirmed as actively exploited in the wild. CISA requires federal agencies to patch by 2023-09-14.
What is the CVSS score for CVE-2023-38831?
CVE-2023-38831 has a CVSS v3 base score of 7.8 (HIGH severity).
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