CVE-2021-20179

HIGHNVD 8.18.1—
EchelonGraph scoreMEDIUM confidence

Score 8.1 from GitHub Security Advisory (severity: HIGH) published 2022-05-24. NVD baseline CVSS 8.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
8.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 8.1Exploit: None knownExposed: 0

A fix is available — apply it.

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.

CVSS v3
8.1
EG Score
8.1(medium)
EG Risk
41(Track)
EG Risk 41/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity81% × 45%
Exploitation1% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
67%
KEV
Not listed

Published

March 15, 2021

Last Modified

November 21, 2024

Advisory Details (9)

Auto-updated Sep 10, 2026
Patch available. Sources: redhat, github_pr.
redhat Patch Available

1914379 – (CVE-2021-20179) CVE-2021-20179 pki-core: Unprivileged users can renew any certificate

Affected: Red Hat Enterprise Linux 7.6 Extended Update Support

https://bugzilla.redhat.com/show_bug.cgi?id=1914379
generic

[SECURITY] Fedora 34 Update: dogtag-pki-10.10.5-3.fc34 - package-announce - Fedora mailing-lists

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/R3I7BRAHLE2WWSY76W3CKFCF5WSSAE24/
generic

[SECURITY] Fedora 32 Update: pki-core-10.10.5-5.fc32 - package-announce - Fedora mailing-lists

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HRE44N6P24AEDKRMWK7RPRLMCUUBRJII/
generic

[SECURITY] Fedora 33 Update: pki-core-10.10.5-5.fc33 - package-announce - Fedora mailing-lists

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DDOLFOLEIV7I4EUC3SCZBXL6E2ER7ZEN/
github_pr

CVE-2021-20179: Fix renewal profile approval process - v10.5

Fix merged in dogtagpki/pki PR #3478 on 2021-03-15 — awaiting tagged release

https://github.com/dogtagpki/pki/pull/3478
github_pr

CVE-2021-20179: Fix renewal profile approval process - v10.8

Fix merged in dogtagpki/pki PR #3477 on 2021-03-15 — awaiting tagged release

https://github.com/dogtagpki/pki/pull/3477
github_pr

CVE-2021-20179: Fix renewal profile approval process - v10.9

Fix merged in dogtagpki/pki PR #3476 on 2021-03-15 — awaiting tagged release

https://github.com/dogtagpki/pki/pull/3476
github_pr

CVE-2021-20179: Fix renewal profile approval process - v10.10

Fix merged in dogtagpki/pki PR #3475 on 2021-03-15 — awaiting tagged release

https://github.com/dogtagpki/pki/pull/3475
github_pr Patch Available

CVE-2021-20179: Fix renewal profile approval process - v10.11

Patch available: dogtagpki/pki v11.0.0 (PR #3474 merged 2021-03-15)

https://github.com/dogtagpki/pki/pull/3474

Vendor Advisories for CVE-2021-20179(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(6)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntupython3-pki-base (10.8.3-1ubuntu1+esm1) @ focal2026-05-26ubuntu
redhatpki-core:10.6-8020020210330222148.bbc64e6e2021-04-20redhat
redhatpki-core-0:10.5.16-7.el7_72021-03-23redhat
redhatpki-core:10.6-8030020210315205745.e0223e2d2021-03-23redhat
redhatpki-core-0:10.5.18-12.el7_92021-03-16redhat
redhatpki-core-0:10.5.9-15.el7_62021-03-15redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(1 across 1 ecosystem)
Debian:11(1)
PackageVulnerable rangeFixed inDependents
dogtag-pki—10.10.2-2—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Additional Vendor Advisories

(5)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 7× in last 7d / 30× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 160 total refreshes for this CVE.

  1. 2026-09-19 15:37 UTCEPSS rescore
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Frequently asked(5)

What is CVE-2021-20179?
CVE-2021-20179 is a high vulnerability published on March 15, 2021. 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.
When was CVE-2021-20179 disclosed?
CVE-2021-20179 was first published in the National Vulnerability Database on March 15, 2021, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2021-20179 actively exploited?
CVE-2021-20179 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 32.7% of all scored CVEs.
What is the CVSS score of CVE-2021-20179?
CVE-2021-20179 has a CVSS v3 base score of 8.1 (NVD).
How do I remediate CVE-2021-20179?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-20179, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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