TI-2020-17821 Aliases CVE-2020-29663

Icinga 2 v2.8.0 through v2.11.7 and v2.12.2 has an issue where revoked certificates due…

MEDIUM 42CWE-295Published 2020-12-15 · Updated 2024-08-04

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: Spoofing
Confidentiality · integrity · availability: High · High · None
Fix status: No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-295.

Summary

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.

Why it matters now

EPSS 0.01573 75th percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
—	—	all versions	—	No fix listed	CNA

— Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPE	Versions	Role	Vendor
cpe:2.3:a:icinga:icinga::::::::	2.8.0 – 2.11.7	Vulnerable	Icinga
cpe:2.3:a:icinga:icinga:2.12.2:::::::*	2.12.2	Vulnerable	Icinga

cpe:2.3:a:icinga:icinga:*:*:*:*:*:*:*:* Versions 2.8.0 – 2.11.7 Vulnerable ·Icinga
cpe:2.3:a:icinga:icinga:2.12.2:*:*:*:*:*:*:* Versions 2.12.2 Vulnerable ·Icinga

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2020-29663

References

Patch 1

https://github.com/Icinga/icinga2/compare/v2.12.1...v2.12.2

Advisory 1

https://github.com/Icinga/icinga2/security/advisories/GHSA-pcmr-2p2f-r7j6

TI-2024-16337 Icinga Director configuration is susceptible to Cross-Site Request Forgery CVSS 3.1HIGH 8.3
TI-2012-05060 Multiple stack-based buffer overflows in the get_history function in history.cgi in… CVSS 2.0HIGH 7.5
TI-2013-05840 Multiple off-by-one errors in Nagios Core 3.5.1, 4.0.2, and earlier, and Icinga before… CVSS 2.0MEDIUM 5.5
TI-2024-32957 Icinga 2 has a TLS Certificate Validation Bypass for JSON-RPC and HTTP API Connections CVSS 3.1CRITICAL 9.8
TI-2025-30428 Icinga 2 certificate renewal might incorrectly renew an invalid certificate CVSS 4.0CRITICAL 9.3
TI-2021-12411 Passwords used to access external services inadvertently exposed through API CVSS 3.1HIGH 8.8

See all 30 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences