RARLAB WinRAR Code Execution Vulnerability

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Summary

CVECVE-2023-38831
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2023-08-23 17:15:00 UTC
Updated2023-10-23 01:15:00 UTC
DescriptionRARLAB 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.

Risk And Classification

EPSS: 0.938780000 probability, percentile 0.998730000 (date 2026-04-22)

CISA KEV: Listed on 2023-08-24; due 2023-09-14; ransomware use Known

Problem Types: NVD-CWE-noinfo

CISA Known Exploited Vulnerability

VendorRARLAB
ProductWinRAR
NameRARLAB WinRAR Code Execution Vulnerability
Required ActionApply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Noteshttp://www.win-rar.com/singlenewsview.html?&L=0&tx_ttnews%5Btt_news%5D=232&cHash=c5bf79590657e32554c6683296a8e8aa; https://nvd.nist.gov/vuln/detail/CVE-2023-38831

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Rarlab Winrar All All All All

References

ReferenceSourceLinkTags
WinRAR zero-day exploited since April to hack trading accounts MISC www.bleepingcomputer.com
WinRAR zero-day exploited since April to hack trading accounts | Hacker News MISC news.ycombinator.com
Cybersecurity Services, Solutions & Products. Global Provider | Group-IB MISC www.group-ib.com
Government-backed actors exploiting WinRAR vulnerability MISC blog.google
WinRAR Remote Code Execution ≈ Packet Storm MISC packetstormsecurity.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis
CISA Known Exploited Vulnerabilities catalog CISA www.cisa.gov kev
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