CVE-2024-10635

Enterprise Protection S/MIME Opaque Signature Attachment Scanning Bypass

Published Apr 28, 2025 CVSS 3.1 · 6.1 Medium EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2024-54529 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.
History
Type Values Removed Values Added
Weaknesses CWE-20
Type Values Removed Values Added
Weaknesses CWE-754
Type Values Removed Values Added
First Time appeared Proofpoint
Proofpoint enterprise Protection
Weaknesses NVD-CWE-noinfo
CPEs cpe:2.3:a:proofpoint:enterprise_protection:8.18.6:*:*:*:-:*:*:*
cpe:2.3:a:proofpoint:enterprise_protection:8.20.6:*:*:*:-:*:*:*
cpe:2.3:a:proofpoint:enterprise_protection:8.21.0:*:*:*:-:*:*:*
Vendors & Products Proofpoint
Proofpoint enterprise Protection
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
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.
Title Enterprise Protection S/MIME Opaque Signature Attachment Scanning Bypass
Weaknesses CWE-20
References
Metrics cvssV3_1

{'score': 6.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
Proofpoint
Published
Updated
Oct 6, 2025, 8:51 PM
Reserved
Oct 31, 2024, 6:23 PM
Status
Modified
Published
Apr 28, 2025, 9:15 PM
Modified
Jun 17, 2026, 6:56 AM