CVE-2021-20179

Name: CVE-2021-20179
Creator: NVD / NIST
Published: 2021-03-15T13:15:14.887+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.1/10EPSS 1.19%

Last modified Jun 17, 2026

CVE-2021-20179 is a high-severity vulnerability rated 8.1/10 on the CVSS scale. A flaw was found in pki-core. An attacker who has successfully compromised a key could use this flaw to renew the corresponding certificate over and over again, as long as it is not explicitly revoked. EPSS estimates a 1.19% chance of exploitation in the next 30 days.

Description

A flaw was found in pki-core. An attacker who has successfully compromised a key could use this flaw to renew the corresponding certificate over and over again, as long as it is not explicitly revoked. The highest threat from this vulnerability is to data confidentiality and integrity.

Metrics

CVSS 3.1

8.1/10

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

EPSS Probability

1.19%

63.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Dogtagpki	Dogtagpki	< 10.5.0
Dogtagpki	Dogtagpki	>= 10.5.1, < 10.8.0
Dogtagpki	Dogtagpki	>= 10.8.1, < 10.9.0
Dogtagpki	Dogtagpki	>= 10.9.1, < 10.10.0
Dogtagpki	Dogtagpki	>= 10.10.1, < 10.11.0
Redhat	Certificate System	10.0
Redhat	Enterprise Linux	7.0
Redhat	Enterprise Linux	8.0
Fedoraproject	Fedora	32
Fedoraproject	Fedora	33
Fedoraproject	Fedora	34

References

https://bugzilla.redhat.com/show_bug.cgi?id=1914379Issue Tracking, Patch, Third Party Advisory
https://github.com/dogtagpki/pki/pull/3474Patch, Third Party Advisory
https://github.com/dogtagpki/pki/pull/3475Patch, Third Party Advisory
https://github.com/dogtagpki/pki/pull/3476Patch, Third Party Advisory
https://github.com/dogtagpki/pki/pull/3477Patch, Third Party Advisory
https://github.com/dogtagpki/pki/pull/3478Patch, Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DDOLFOLEIV7I4EUC3SCZBXL6E2ER7ZEN/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HRE44N6P24AEDKRMWK7RPRLMCUUBRJII/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/R3I7BRAHLE2WWSY76W3CKFCF5WSSAE24/
https://bugzilla.redhat.com/show_bug.cgi?id=1914379Issue Tracking, Patch, Third Party Advisory
https://github.com/dogtagpki/pki/pull/3474Patch, Third Party Advisory
https://github.com/dogtagpki/pki/pull/3475Patch, Third Party Advisory
https://github.com/dogtagpki/pki/pull/3476Patch, Third Party Advisory
https://github.com/dogtagpki/pki/pull/3477Patch, Third Party Advisory
https://github.com/dogtagpki/pki/pull/3478Patch, Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DDOLFOLEIV7I4EUC3SCZBXL6E2ER7ZEN/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HRE44N6P24AEDKRMWK7RPRLMCUUBRJII/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/R3I7BRAHLE2WWSY76W3CKFCF5WSSAE24/

Timeline

Published: Mar 15, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-20179?

How severe is CVE-2021-20179?

CVE-2021-20179 has a CVSS score of 8.1/10 (HIGH severity). The EPSS model estimates a 1.19% probability of exploitation in the next 30 days.

How do I fix CVE-2021-20179?

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-2021-20179?

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

Scan your code now

Source: NVD / NIST