CVE-2019-19680

Name: CVE-2019-19680
Creator: NVD / NIST
Published: 2020-01-13T21:15:11.12+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 1.05%

Last modified Jun 17, 2026

CVE-2019-19680 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. A file-extension filtering vulnerability in Proofpoint Enterprise Protection (PPS / PoD), in the unpatched versions of PPS through 8.9.22 and 8.14.2 respectively, allows attackers to bypass protection mechanisms (related to extensions, MIME types, virus detection, and journal entries for transmitted files) by sending malformed (not RFC compliant) multipart email.. EPSS estimates a 1.05% chance of exploitation in the next 30 days.

Description

A file-extension filtering vulnerability in Proofpoint Enterprise Protection (PPS / PoD), in the unpatched versions of PPS through 8.9.22 and 8.14.2 respectively, allows attackers to bypass protection mechanisms (related to extensions, MIME types, virus detection, and journal entries for transmitted files) by sending malformed (not RFC compliant) multipart email.

Metrics

CVSS 3.1

8.8/10

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

EPSS Probability

1.05%

60.0th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Proofpoint	Enterprise Protection	<= 8.9.22
Proofpoint	Enterprise Protection	<= 8.14.2

References

https://www.proofpoint.com/us/security/cve-2019-19680Vendor Advisory
https://www.proofpoint.com/us/security/security-advisories/pfpt-sa-2020-0001Vendor Advisory
https://www.proofpoint.com/us/security/cve-2019-19680Vendor Advisory
https://www.proofpoint.com/us/security/security-advisories/pfpt-sa-2020-0001Vendor Advisory

Timeline

Published: Jan 13, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2019-19680?

How severe is CVE-2019-19680?

CVE-2019-19680 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 1.05% probability of exploitation in the next 30 days.

How do I fix CVE-2019-19680?

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-2019-19680?

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

Scan your code now

Source: NVD / NIST