CVE-2018-20250

7.8 HIGH CISA KEV - Actively Exploited
Published: February 05, 2019 Modified: October 31, 2025
View on NVD

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.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
http://packetstormsecurity.com/files/152618/RARLAB-WinRAR-ACE-Format-Input-Validation-Remote-Code-Execution.html
Source: cve@checkpoint.com
Exploit Third Party Advisory VDB Entry
http://www.rapid7.com/db/modules/exploit/windows/fileformat/winrar_ace
Source: cve@checkpoint.com
Third Party Advisory
http://www.securityfocus.com/bid/106948
Source: cve@checkpoint.com
Broken Link Third Party Advisory VDB Entry
https://github.com/blau72/CVE-2018-20250-WinRAR-ACE
Source: cve@checkpoint.com
Exploit Third Party Advisory
https://research.checkpoint.com/extracting-code-execution-from-winrar/
Source: cve@checkpoint.com
Exploit Press/Media Coverage Third Party Advisory
https://www.exploit-db.com/exploits/46552/
Source: cve@checkpoint.com
Exploit Third Party Advisory VDB Entry
https://www.exploit-db.com/exploits/46756/
Source: cve@checkpoint.com
Exploit Third Party Advisory VDB Entry
https://www.win-rar.com/whatsnew.html
Source: cve@checkpoint.com
Release Notes
http://packetstormsecurity.com/files/152618/RARLAB-WinRAR-ACE-Format-Input-Validation-Remote-Code-Execution.html
Source: af854a3a-2127-422b-91ae-364da2661108
Exploit Third Party Advisory VDB Entry
http://www.rapid7.com/db/modules/exploit/windows/fileformat/winrar_ace
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
http://www.securityfocus.com/bid/106948
Source: af854a3a-2127-422b-91ae-364da2661108
Broken Link Third Party Advisory VDB Entry
https://github.com/blau72/CVE-2018-20250-WinRAR-ACE
Source: af854a3a-2127-422b-91ae-364da2661108
Exploit Third Party Advisory
https://research.checkpoint.com/extracting-code-execution-from-winrar/
Source: af854a3a-2127-422b-91ae-364da2661108
Exploit Press/Media Coverage Third Party Advisory
https://www.exploit-db.com/exploits/46552/
Source: af854a3a-2127-422b-91ae-364da2661108
Exploit Third Party Advisory VDB Entry
https://www.exploit-db.com/exploits/46756/
Source: af854a3a-2127-422b-91ae-364da2661108
Exploit Third Party Advisory VDB Entry
https://www.win-rar.com/whatsnew.html
Source: af854a3a-2127-422b-91ae-364da2661108
Release Notes
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-20250
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0
US Government Resource

17 reference(s) from NVD

Quick Stats

CVSS v3 Score
7.8 / 10.0
EPSS (Exploit Probability)
93.5%
100th percentile
Exploitation Status
Actively Exploited
Remediation due: 2022-08-15

Weaknesses (CWE)

CWE-36 CWE-22

Affected Vendors

rarlab

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