Skip to content
Appaloosa Scout

Vulnerability · NVD

CVE-2018-20251

MEDIUM 5.5

In WinRAR versions prior to and including 5.61, there is path traversal vulnerability when crafting the filename field of the ACE format. The UNACE module (UNACEV2.dll) creates files and folders as written in the filename field even when WinRAR validator noticed the traversal attempt and requestd to abort the extraction process. the operation is cancelled only after the folders and files were created but prior to them being written, therefore allowing the attacker to create empty files and folders everywhere in the file system.

Attack vector : Local No privileges required
Show raw CVSS vector
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
EPSS 31.53% moderate exploit risk percentile 98.1%

Tracked apps referencing this CVE

For each app: the affected range, the fixing version, and where the tracked app stands today.

  • WinRAR Windows winget:RARLab.WinRAR
    Affected ≤5.61 Fixed in > 5.61 Latest tracked 7.23.0 patched
Vulnerable CPE configurations (1)
Vendor Product Versions
rarlab winrar
All platforms (wildcard)
≤5.61
View on NVD ↗ Advisory · www.win-rar.com