CVE-2017-13684: Unisys Mcp-Firmware

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

Unisys Libra 64xx and 84xx and FS601 class systems with MCP-FIRMWARE before 43.211 allow remote authenticated users to cause a denial of service (program crash) or have unspecified other impact via vectors related to incorrect literal handling, which trigger CPM stack corruption.

Affected products

• Unisys Mcp-Firmware: up to and including 43.185

Published 2017-09-30. Last modified 2026-06-17.