CVE-2021-31608

Name: CVE-2021-31608
Creator: NVD / NIST
Published: 2022-11-17T22:15:10.197+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 4.3/10EPSS 0.42%

Last modified Jun 17, 2026

CVE-2021-31608 is a medium-severity vulnerability rated 4.3/10 on the CVSS scale. Proofpoint Enterprise Protection before 18.8.0 allows a Bypass of a Security Control.. EPSS estimates a 0.42% chance of exploitation in the next 30 days.

Description

Proofpoint Enterprise Protection before 18.8.0 allows a Bypass of a Security Control.

Metrics

CVSS 3.1

4.3/10

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

EPSS Probability

0.42%

33.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-693

Affected Software

Vendor	Product	Versions
Proofpoint	Enterprise Protection	< 18.8.0

References

https://www.proofpoint.com/us/security/security-advisories/pfpt-sa-2021-0011Vendor Advisory
https://www.proofpoint.com/us/security/security-advisories/pfpt-sa-2021-0011Vendor Advisory

Timeline

Published: Nov 17, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-31608?

Proofpoint Enterprise Protection before 18.8.0 allows a Bypass of a Security Control.

How severe is CVE-2021-31608?

CVE-2021-31608 has a CVSS score of 4.3/10 (MEDIUM severity). The EPSS model estimates a 0.42% probability of exploitation in the next 30 days.

How do I fix CVE-2021-31608?

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-2021-31608?

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

Scan your code now

Source: NVD / NIST