CVE-2019-19920

Name: CVE-2019-19920
Creator: NVD / NIST
Published: 2019-12-22T18:15:10.607+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 3.16%

Last modified Jun 17, 2026

CVE-2019-19920 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. sa-exim 4.2.1 allows attackers to execute arbitrary code if they can write a .cf file or a rule. This occurs because Greylisting.pm relies on eval (rather than direct parsing and/or use of the taint feature). EPSS estimates a 3.16% chance of exploitation in the next 30 days.

Description

sa-exim 4.2.1 allows attackers to execute arbitrary code if they can write a .cf file or a rule. This occurs because Greylisting.pm relies on eval (rather than direct parsing and/or use of the taint feature). This issue is similar to CVE-2018-11805.

Metrics

CVSS 3.1

8.8/10

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

EPSS Probability

3.16%

86.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-78

Affected Software

Vendor	Product	Versions
Sa-Exim Project	Sa-Exim	4.2.1
Canonical	Ubuntu Linux	16.04
Debian	Debian Linux	8.0
Debian	Debian Linux	9.0
Debian	Debian Linux	10.0

References

https://bugs.debian.org/946829#24Mailing List, Patch, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/01/msg00006.htmlMailing List, Third Party Advisory
https://marc.info/?l=spamassassin-users&m=157668107325768&w=2Mailing List, Third Party Advisory
https://marc.info/?l=spamassassin-users&m=157668305026635&w=2Mailing List, Third Party Advisory
https://usn.ubuntu.com/4520-1/Third Party Advisory
https://bugs.debian.org/946829#24Mailing List, Patch, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/01/msg00006.htmlMailing List, Third Party Advisory
https://marc.info/?l=spamassassin-users&m=157668107325768&w=2Mailing List, Third Party Advisory
https://marc.info/?l=spamassassin-users&m=157668305026635&w=2Mailing List, Third Party Advisory
https://usn.ubuntu.com/4520-1/Third Party Advisory

Timeline

Published: Dec 22, 2019
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2019-19920?

How severe is CVE-2019-19920?

CVE-2019-19920 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 3.16% probability of exploitation in the next 30 days.

How do I fix CVE-2019-19920?

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-2019-19920?

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

Scan your code now

Source: NVD / NIST