CVE-2018-20250

MITRE NVD CVE.ORG Print: PDF PDF

Summary

CVECVE-2018-20250
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2019-02-05 20:29:00 UTC
Updated2019-10-09 23:39:00 UTC
DescriptionIn WinRAR versions prior to and including 5.61, There is path traversal vulnerability when crafting the filename field of the ACE format (in UNACEV2.dll). When the filename field is manipulated with specific patterns, the destination (extraction) folder is ignored, thus treating the filename as an absolute path.

Risk And Classification

EPSS: 0.934620000 probability, percentile 0.998190000 (date 2026-04-02)

CISA KEV: Listed on 2022-02-15; due 2022-08-15; ransomware use Known

Problem Types: CWE-22

CISA Known Exploited Vulnerability

VendorRARLAB
ProductWinRAR
NameWinRAR Absolute Path Traversal Vulnerability
Required ActionApply updates per vendor instructions.
Noteshttps://nvd.nist.gov/vuln/detail/CVE-2018-20250

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Rarlab Winrar All All All All

References

ReferenceSourceLinkTags
WinRAR Multiple Security Vulnerabilities BID www.securityfocus.com Third Party Advisory, VDB Entry
GitHub - blau72/CVE-2018-20250-WinRAR-ACE: Proof of concept code in C# to exploit the WinRAR ACE file extraction path (CVE-2018-20250). MISC github.com Exploit, Third Party Advisory
RARLAB WinRAR ACE Format Input Validation Remote Code Execution ≈ Packet Storm MISC packetstormsecurity.com Third Party Advisory, VDB Entry
WinRAR 5.61 - Path Traversal EXPLOIT-DB www.exploit-db.com Exploit, Third Party Advisory, VDB Entry
RARLAB WinRAR ACE Format Input Validation Remote Code Execution MISC www.rapid7.com Third Party Advisory
RARLAB WinRAR 5.61 - ACE Format Input Validation Remote Code Execution (Metasploit) - Windows local Exploit EXPLOIT-DB www.exploit-db.com Exploit, Third Party Advisory, VDB Entry
Extracting a 19 Year Old Code Execution from WinRAR - Check Point Research MISC research.checkpoint.com Exploit, Third Party Advisory
WinRAR download and support: Whats New MISC www.win-rar.com Vendor Advisory
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
© CVE.report 2026 |

Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. It is the responsibility of user to evaluate the accuracy, completeness or usefulness of any information, opinion, advice or other content. EACH USER WILL BE SOLELY RESPONSIBLE FOR ANY consequences of his or her direct or indirect use of this web site. ALL WARRANTIES OF ANY KIND ARE EXPRESSLY DISCLAIMED. This site will NOT BE LIABLE FOR ANY DIRECT, INDIRECT or any other kind of loss.

CVE, CWE, and OVAL are registred trademarks of The MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. This site includes MITRE data granted under the following license.

CVE.report and Source URL Uptime Status status.cve.report