Description
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.
Metrics
CVSS 3.1 5.3/10
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:NWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| Proofpoint | Enterprise Protection | >= 8.18.6, < patch 5110; >= 8.20.6, < patch 5134; >= 8.21.0, < patch 5112 |
References
Timeline
- Published
- Apr 28, 2025
- Last modified
- Jun 17, 2026
- NVD status
- Modified