CVE-2021-39304

Name: CVE-2021-39304
Creator: NVD / NIST
Published: 2021-10-13T15:15:07.76+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 0.98%

Last modified Jun 17, 2026

CVE-2021-39304 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. Proofpoint Enterprise Protection before 8.12.0-2108090000 allows security control bypass.. EPSS estimates a 0.98% chance of exploitation in the next 30 days.

Description

Proofpoint Enterprise Protection before 8.12.0-2108090000 allows security control bypass.

Metrics

CVSS 3.1

7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS Probability

0.98%

57.8th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Proofpoint	Enterprise Protection	>= 8.12.0-2107140000, < 8.12.0-2108090000

References

https://www.proofpoint.com/us/blogVendor Advisory
https://www.proofpoint.com/us/security/security-advisories/pfpt-sa-2021-0007Vendor Advisory
https://www.proofpoint.com/us/blogVendor Advisory
https://www.proofpoint.com/us/security/security-advisories/pfpt-sa-2021-0007Vendor Advisory

Timeline

Published: Oct 13, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-39304?

Proofpoint Enterprise Protection before 8.12.0-2108090000 allows security control bypass.

How severe is CVE-2021-39304?

CVE-2021-39304 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 0.98% probability of exploitation in the next 30 days.

How do I fix CVE-2021-39304?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-39304?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST