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CVE-2024-49369

29
FAUCET Score

CVE-2024-49369 is a critical vulnerability affecting Icinga 2 versions 2.4.0 and later, stemming from flawed TLS certificate validation. This flaw allows an unauthenticated attacker to impersonate trusted cluster nodes and API users utilizing client certificates. With a CVSS score of 9.8, the vulnerability has a high impact on confidentiality, integrity, and availability, requiring no user interaction or privileges for exploitation. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 2.4.0, < 2.11.12CPE matchmatch criteria
cpe:2.3:a:icinga:icinga:*:*:*:*:*:*:*:*
>= 2.12.0, < 2.12.11CPE matchmatch criteria
cpe:2.3:a:icinga:icinga:*:*:*:*:*:*:*:*
>= 2.13.0, < 2.13.10CPE matchmatch criteria
cpe:2.3:a:icinga:icinga:*:*:*:*:*:*:*:*
>= 2.14.0, < 2.14.3CPE matchmatch criteria
cpe:2.3:a:icinga:icinga:*:*:*:*:*:*:*:*
11.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
2.93%
Probability of exploitation in next 30 days
EPSS Percentile
85.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0293 is in the 77th percentile among its peer group of 36,862 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

github_advisorypatch availablevia nvd_reference
View patch

References

lists.debian.org / debian-lts-announce/2024/11/msg00010.html
Mailing ListThird Party Advisory
github.com / Icinga/icinga2/commit/0419a2c36de408e9a703aec0962061ec9a285d3c
Patch
github.com / Icinga/icinga2/commit/2febc5e18ae0c93d989e64ebc2a9fd90e7205ad8
Patch
github.com / Icinga/icinga2/commit/3504fc7ed688c10d86988e2029a65efc311393fe
Patch
github.com / Icinga/icinga2/commit/869a7d6f0fe38c748e67bacc1fbdd42c933030f6
Patch
github.com / Icinga/icinga2/commit/8fed6608912c752b337d977f730547875a820831
Patch
github.com / Icinga/icinga2/security/advisories/GHSA-j7wq-r9mg-9wpv
PatchVendor Advisory
icinga.com / blog/2024/11/12/critical-icinga-2-security-releases-2-14-3
Release Notes