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CVE-2023-38831

HIGHCISA KEV

7.8

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.

CVE Details

CVSS v3.1 Score7.8

SeverityHIGH

CVSS VectorCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack VectorLOCAL

ComplexityLOW

Privileges RequiredNONE

User InteractionREQUIRED

Published8/23/2023

Last Modified10/31/2025

Sourcekev

Honeypot Sightings0

CISA KEV

VendorRARLAB

ProductWinRAR

Vulnerability NameRARLAB WinRAR Code Execution Vulnerability

KEV Date Added2023-08-24

Remediation Due Date2023-09-14

Ransomware UseKnown

Affected Products

rarlab:winrar

Weaknesses (CWE)

CWE-345CWE-351

References

http://packetstormsecurity.com/files/174573/WinRAR-Remote-Code-Execution.html(cve@mitre.org)

https://blog.google/threat-analysis-group/government-backed-actors-exploiting-winrar-vulnerability/(cve@mitre.org)

https://news.ycombinator.com/item?id=37236100(cve@mitre.org)

https://www.bleepingcomputer.com/news/security/winrar-zero-day-exploited-since-april-to-hack-trading-accounts/(cve@mitre.org)

https://www.group-ib.com/blog/cve-2023-38831-winrar-zero-day/(cve@mitre.org)

http://packetstormsecurity.com/files/174573/WinRAR-Remote-Code-Execution.html(af854a3a-2127-422b-91ae-364da2661108)

https://blog.google/threat-analysis-group/government-backed-actors-exploiting-winrar-vulnerability/(af854a3a-2127-422b-91ae-364da2661108)

https://news.ycombinator.com/item?id=37236100(af854a3a-2127-422b-91ae-364da2661108)

https://www.bleepingcomputer.com/news/security/winrar-zero-day-exploited-since-april-to-hack-trading-accounts/(af854a3a-2127-422b-91ae-364da2661108)

https://www.group-ib.com/blog/cve-2023-38831-winrar-zero-day/(af854a3a-2127-422b-91ae-364da2661108)

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-38831(134c704f-9b21-4f2e-91b3-4a467353bcc0)

IOC Correlations

No correlations recorded

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