CVE-2007-4903: Ultra Shareware Ultra Crypto Component

High severity, CVSS 7.5. EPSS: 9.4% chance of exploitation in the next 30 days.

Multiple buffer overflows in a certain ActiveX control in CryptoX.dll 2.0 and earlier in the Ultra Crypto Component allow remote attackers to execute arbitrary code via (1) a long string in the first argument to the AcquireContext method or (2) an unspecified vector to the DeleteContext method.

Affected products

Published 2007-09-17. Last modified 2026-06-16.