CVE-2024-10635

Enterprise Protection S/MIME Opaque Signature Attachment Scanning Bypass

State
Published
Severity
6.1 Medium
Published
Apr 28, 2025
Updated
Oct 6, 2025
Reserved
Oct 31, 2024

Read the record on cve.org

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.

Scores

CVSSScoreVectorSource
3.16.1 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:NProofpoint

Weaknesses

  • CWE-754 Improper Check for Unusual or Exceptional Conditions

Affected Products

ProductVersions
Enterprise ProtectionProofpoint
  • 8.18.6 to before patch 5110Affectedfrom patch 4868Not affected
  • 8.20.6 to before patch 5134Affectedfrom patch 4871Not affected
  • 8.21.0 to before patch 5112Affectedfrom patch 4872Not affected

References

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