CVE-2023-31488: Cisco Ironport Email Security Appliance

Critical severity, CVSS 9.8. EPSS: 0.7% chance of exploitation in the next 30 days.

Hyland Perceptive Filters releases before 2023-12-08 (e.g., 11.4.0.2647), as used in Cisco IronPort Email Security Appliance Software, Cisco Secure Email Gateway, and various non-Cisco products, allow attackers to trigger a segmentation fault and execute arbitrary code via a crafted document.

Affected products

• Cisco Ironport Email Security Appliance: affected versions not specified
• Cisco Secure Email Gateway Firmware: affected versions not specified

Published 2024-01-10. Last modified 2026-06-17.