CVE-2007-3726: RARLAB UnRAR

Medium severity, CVSS 4.3. EPSS: 2.1% chance of exploitation in the next 30 days.

Integer signedness error in the SET_VALUE function in rarvm.cpp in unrar 3.70 beta 3, as used in products including WinRAR and RAR for OS X, allows user-assisted remote attackers to cause a denial of service (crash) via a crafted RAR archive that causes a negative signed number to be cast to a large unsigned number.

Affected products

• RARLAB UnRAR: version 3.70_beta_3 only

Published 2007-07-12. Last modified 2026-06-16.