RARLAB WinRAR Absolute Path Traversal Vulnerability
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…
Severity = CVSS. Probability = EPSS (FIRST). Exploitation = public signals: KEV, EUVD, ransomware, EPSS above 10 %, no account required.
Exploitation probability EPSS · FIRST
Exploitation signals 4 / 5
- KEV catalog (CISA)15 Feb 2022
- Exploited in EUVD (ENISA)15 Feb 2022
- Used by ransomwareyes
- EPSS above 10 %96.0%
- No account, over the networkno
What to do
Fix
Apply the vendor’s fix as soon as it is available.
CISA guidance: Apply updates per vendor instructions.
Meanwhile
Take the service off the internet or restrict access to it, watch the logs and look for signs of compromise.
Manufacturers (CRA)
Exploited vulnerability in your product: early warning to ENISA within 24 h, then notification within 72 h (Article 14 of the Cyber Resilience Act). The CRA explained
Description ENISA EUVD
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.
Affected products
- All versions prior and including 5.61
Open source packages OSV
Affected libraries according to OSV, with fixed versions.
Timeline
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Published
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Exploitation reported (ENISA)
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Added to the KEV catalog
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CISA remediation due date
-
EPSS peak: 96.0%
References
Other exploited vulnerabilities from the same vendor
- CVE-2025-6218RARLAB WinRAR Path Traversal Vulnerability7.6 · Background exploitation
- CVE-2025-8088RARLAB WinRAR Path Traversal Vulnerability8.6 · Background exploitation
- CVE-2023-38831RARLAB WinRAR Code Execution Vulnerability8.5 · Background exploitation
- CVE-2022-30333RARLAB UnRAR Directory Traversal Vulnerability9.9 · Background exploitation