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CVE-2018-20250

Published: Feb 5, 2019Updated: Oct 31, 2025 Sources: CVE List NVD BDUCWE-36
NVD MITRE
7.8CVSSHIGH
EPSS Score
96.3%
Top 0.1%
CISA KEV
Active Exploitation
Since Feb 15, 2022
Exploits
5 Known
Remediation
Patch Available

Description

In 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.

CVSS Vector Breakdown

AV:LAC:LPR:NUI:RS:UC:HI:HA:H
Exploitability
AV:LAttack Vector
Local
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:RUser Interaction
Required
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-36CWE-22

Affected Products

WinRARCheck Point Software Technologies Ltd.
Mixed
Security Products / endpoint-av-edr
WinRARWinRAR GmbH
Mixed
Consumer Software / file-utility
winrarrarlab
On-prem
Consumer Software / file-utility
check point software technologies ltd.commercialUSSecurity Productsaka checkpoint
winrar gmbhcommercialNLConsumer Softwareaka winrar gmbh
rarlabcommercialConsumer Softwareaka winrar, rar, unrar

Attack Graph

Products CVE Techniques Tactics

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Exploitability

CISA Known Exploited Vulnerability
Added to KEV:Feb 15, 2022
Remediation due:Aug 15, 2022
Ransomware:Known ransomware use

Required action: Apply updates per vendor instructions.

5 exploit sources identified

Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.

View exploit details
Official Patch Available

MITRE ATT&CK

2 techniques
Collection
Discovery
View detailed technique mapping

References

https://github.com/blau72/CVE-2018-20250-WinRAR-ACE
github.com
https://research.checkpoint.com/extracting-code-execution-from-winrar/
research.checkpoint.com
https://www.exploit-db.com/exploits/46552/
exploit-db.com
and 9 more references View all →

Timeline

Published
Feb 5, 2019
Added to CISA KEV
Feb 15, 2022
Last Updated
Oct 31, 2025

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