CVE-2024-10635 Enterprise Protection S/MIME Opaque Signature Attachment Scanning Bypass
Attackers can bypass attachment scanning by sending malicious S/MIME opaque signatures, potentially compromising recipient system integrity and confidentiality.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2024-10635?
CVE-2024-10635 is a medium-severity vulnerability in Proofpoint Enterprise Protection, published on 28 Apr 2025. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official 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.
Weakness: CWE-754
Which versions are affected by CVE-2024-10635?
It affects 1 product.
Products include Proofpoint Enterprise Protection.
How do I fix CVE-2024-10635?
No fix has been published for CVE-2024-10635 yet. Limit exposure of the affected software until one is available.
Is CVE-2024-10635 being exploited?
There is no known exploitation of CVE-2024-10635 in the wild and no public exploit code.
Other vulnerabilities in Proofpoint Enterprise Protection
- CVE-2023-0090 Proofpoint Enterprise Protection webservices unauthenticated RCE
- CVE-2022-46332 Proofpoint Enterprise Protection (PPS/PoD) XSS in "Attachment Names"
- CVE-2023-0089 Proofpoint Enterprise Protection webutils authenticated RCE
- CVE-2019-19680 Security feature bypass in n/a
- CVE-2022-46334 Proofpoint Enterprise Protection Local Privilege Escalation
Sources
Also known as GHSA-47r3-rvvm-8c7f.