Proofpoint: >> Enterprise Protection >> 8.21.0 Security Vulnerabilities
Enterprise Protection contains an improper input validation vulnerability in attachment defense that allows an unauthenticated remote attacker to bypass attachment scanning security policy by sending a malicious S/MIME attachment with an opaque signature. When opened by a recipient in a downstream email client, the malicious attachment could cause partial loss of integrity and confidentiality to their system.
CVSS Score
6.1
EPSS Score
0.0
Published
2025-04-28