SPOJENO PŘES CVE Cisco Secure Email Secure/Multipurpose Internet Mail Extensions Ciphertext Decryption Vulnerabilities
Classification: Important, Solution: Official Fix, Exploit Maturity: Not Defined, CVSSv3.1: 5.9, CVEs: CVE-2026-20354, CVE-2026-20355, Summary: Multiple vulnerabilities in the Secure/Multipurpose Internet Mail Extensions (S/MIME) decryption functionality of Cisco Secure Email could allow an unauthenticated, remote attacker to recover plain text from encrypted email messages. These vulnerabilities are due to insufficient validation of message integrity. An attacker could exploit these…
EPSS 0.00 CVSS 5.9 CVE-2026-20354 CVE-2026-20355 Cisco FI US