RARLAB WinRAR Path Traversal Vulnerability
RARLAB WinRAR contains a path traversal vulnerability allowing an attacker to execute code in the context of the current user.
A local attacker, without authentication, can achieve full data confidentiality loss, arbitrary modification of data, complete denial of service or system unavailability. Federal agencies are required to remediate by 2025-12-30 under CISA BOD 22-01.
This is a Path Traversal (CWE-22) vulnerability in RARLAB WinRAR. Exploitation requires local access, low attack complexity, no authentication required, and user interaction required.
Probably yes if any of these apply:
Active exploitation documented in the wild. Threat-research write-up: https://foresiet.com/blog/apt-c-08-winrar-directory-traversal-exploit/
Manual remediation steps
Apply the Vendor Patch
This vulnerability is in the CISA Known Exploited Vulnerabilities catalog — apply the vendor's security update as soon as possible.
CISA required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
References
No tested PowerShell script for this entry yet. We’re prioritising automation based on user demand.
References