CVE-2020-9331: Cryptopro Csp

High severity, CVSS 7.8. EPSS: 0.4% chance of exploitation in the next 30 days.

CryptoPro CSP through 5.0.0.10004 on 32-bit platforms allows Local Privilege Escalation (by local users with the SeChangeNotifyPrivilege right) because user-mode input is mishandled during process creation. An attacker can write arbitrary data to an arbitrary location in the kernel's address space.

Affected products

• Cryptopro Csp: before 5.0.0.10004 (fixed in 5.0.0.10004)

Published 2020-10-23. Last modified 2026-06-17.