Cisco Secure Email

8 known vulnerabilities in Cisco Secure Email, 5 critical, 2 actively exploited, with patch priority, exploit likelihood and the news covering them.

Recently exploited

CVE-2026-76461 CVSS 9.8 critical · actively exploited Cisco Secure Email Gateway SQL Injection Vulnerability
CVE-2025-20393 CVSS 10.0 critical · actively exploited Cisco Multiple Products Improper Input Validation Vulnerability

CVE-2026-76461 CVSS 9.8 critical · actively exploited Cisco Secure Email Gateway SQL Injection Vulnerability
CVE-2026-76443 CVSS 9.8 critical As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco Secure Email Gateway and Cisco Secure Email and…
CVE-2026-76442 CVSS 7.5 high As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco Secure Email Gateway and Cisco Secure Email and…
CVE-2026-76440 CVSS 9.8 critical As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco Secure Email Gateway and Cisco Secure Email and…
CVE-2026-20353 CVSS 9.8 critical As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco Secure Email Gateway and Cisco Secure Email and…
CVE-2026-20355 CVSS 5.9 medium Multiple vulnerabilities in the Secure/Multipurpose Internet Mail Extensions (S/MIME) decryption functionality of Cisco Secure Email could…
CVE-2026-20354 CVSS 5.9 medium Multiple vulnerabilities in the Secure/Multipurpose Internet Mail Extensions (S/MIME) decryption functionality of Cisco Secure Email could…
CVE-2025-20393 CVSS 10.0 critical · actively exploited Cisco Multiple Products Improper Input Validation Vulnerability