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Vulnerability record · CVE-2020-29663 · published 15 December 2020

CVE-2020-29663: Icinga improper certificate validation vulnerability

Icinga · Icinga

Icinga 2 v2.8.0 through v2.11.7 and v2.12.2 has an issue where revoked certificates due for renewal will automatically be renewed, ignoring the CRL. This issue is fixed in Icinga 2 v2.11.8 and v2.12.3.

9.1 CVSS 3.1 Critical EPSS 1.6% · top 25.6% CWE-295 · Improper certificate validation
9.1CVSS 3.1 base score, v2 6.4
1.6%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References
17 Jun 2026Last modified by NVD

Description

Icinga 2 v2.8.0 through v2.11.7 and v2.12.2 has an issue where revoked certificates due for renewal will automatically be renewed, ignoring the CRL. This issue is fixed in Icinga 2 v2.11.8 and v2.12.3.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/Icinga/icinga2/compare/v2.12.1...v2.12.2 PatchThird Party Advisory
https://github.com/Icinga/icinga2/security/advisories/GHSA-pcmr-2p2f-r7j6 Third Party Advisory
https://github.com/Icinga/icinga2/compare/v2.12.1...v2.12.2 PatchThird Party Advisory
https://github.com/Icinga/icinga2/security/advisories/GHSA-pcmr-2p2f-r7j6 Third Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2020-29663), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.