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CVE-2024-10635: Enterprise Protection S/MIME Opaque Signature Attachment Scanning Bypass

6.1 CVSS

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.

Classification

CVE ID: CVE-2024-10635

CVSS Base Severity: MEDIUM

CVSS Base Score: 6.1

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Problem Types

CWE-20 Improper Input Validation

Affected Products

Vendor: Proofpoint

Product: Enterprise Protection

Exploit Prediction Scoring System (EPSS)

EPSS Score: 0.04% (probability of being exploited)

EPSS Percentile: 11.47% (scored less or equal to compared to others)

EPSS Date: 2025-05-27 (when was this score calculated)

References

https://nvd.nist.gov/vuln/detail/CVE-2024-10635
https://www.proofpoint.com/us/security/security-advisories/pfpt-sa-2025-0002

Timeline