Icinga is a monitoring system which checks the availability of network resources, notifies users of outages, and generates performance data for reporting. The TLS certificate validation in all Icinga 2 versions starting from 2.4.0 was flawed, allowing an attacker to impersonate both trusted cluster nodes as well as any API users that use TLS client certificates for authentication (ApiUser objects with the client_cn attribute set). This vulnerability has been fixed in v2.14.3, v2.13.10, v2.12.11, and v2.11.12.
CVE-2024-49369
This critical-severity CVE scores 9.8 under NVD CVSS v3. EPSS exploit probability: 2.9%, top 14% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
- High severity, but no confirmed exploitation yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 9.8
- EG Score
- 9.8(medium)
- EG Risk
- 75(Track)EG Risk 75/100SSVC: 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 computedSeverity98% × 45%Exploitation40% × 40%Automatability100% × 15%Action: Routine — remediate on your standard cadence. - EPSS
- 85.6%
- KEV
- Not listed
Published
November 12, 2024
Last Modified
November 26, 2025
Advisory Details (8)
Auto-updated Jun 29, 2026[SECURITY] [DLA 3953-1] icinga2 security update
https://lists.debian.org/debian-lts-announce/2024/11/msg00010.htmlCritical Icinga 2 Security Update 2.14.3
https://icinga.com/blog/2024/11/12/critical-icinga-2-security-releases-2-14-3TLS Certificate Validation Bypass for JSON-RPC and HTTP API Connections · Advisory · Icinga/icinga2 · GitHub
https://github.com/Icinga/icinga2/security/advisories/GHSA-j7wq-r9mg-9wpvcommit 8fed6608912c (Icinga/icinga2)
Patch available: Icinga/icinga2 v2.11.12 (contains commit 8fed6608912c)
https://github.com/Icinga/icinga2/commit/8fed6608912c752b337d977f730547875a820831commit 869a7d6f0fe3 (Icinga/icinga2)
Fix landed in Icinga/icinga2 commit 869a7d6f0fe3 — awaiting tagged release
https://github.com/Icinga/icinga2/commit/869a7d6f0fe38c748e67bacc1fbdd42c933030f6commit 3504fc7ed688 (Icinga/icinga2)
Patch available: Icinga/icinga2 v2.13.10 (contains commit 3504fc7ed688)
https://github.com/Icinga/icinga2/commit/3504fc7ed688c10d86988e2029a65efc311393fecommit 2febc5e18ae0 (Icinga/icinga2)
Patch available: Icinga/icinga2 v2.14.3 (contains commit 2febc5e18ae0)
https://github.com/Icinga/icinga2/commit/2febc5e18ae0c93d989e64ebc2a9fd90e7205ad8commit 0419a2c36de4 (Icinga/icinga2)
Patch available: Icinga/icinga2 v2.12.11 (contains commit 0419a2c36de4)
https://github.com/Icinga/icinga2/commit/0419a2c36de408e9a703aec0962061ec9a285d3cWeakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 12× in last 7d / 42× 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.
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Publicly available exploits
(1 reference)Working exploit code is in the public domain (1 GitHub PoC). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.
- Open source ↗GitHub PoCQuantum-Sicarius/CVE-2024-49369First seen Nov 29, 2024
Related CVEs(same CWE)
Same CWE
10 shownCWE-295
Frequently asked(5)
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Dependency Blast Radius
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