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CVE-2021-32743

27
FAUCET Score

CVE-2021-32743 is a critical vulnerability in Icinga, a network monitoring system, affecting versions prior to 2.11.10 and 2.12.0 through 2.12.4. It exposes credentials for external services (like databases, Redis, and Elasticsearch) through the API to authenticated users with read permissions for specific object types. This vulnerability carries a CVSS score of 8.8 (HIGH), indicating that an attacker with low privileges can achieve high confidentiality, integrity, and availability impact by impersonating Icinga to these services. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 2.0.0, < 2.11.10CPE matchmatch criteria
cpe:2.3:a:icinga:icinga:*:*:*:*:*:*:*:*
>= 2.12.0, < 2.12.5CPE matchmatch criteria
cpe:2.3:a:icinga:icinga:*:*:*:*:*:*:*:*
9.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.8HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.80%
Probability of exploitation in next 30 days
EPSS Percentile
76.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0180 is in the 74th percentile among its peer group of 17,844 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.3 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

lists.debian.org / debian-lts-announce/2024/11/msg00010.html
github.com / Icinga/icinga2/security/advisories/GHSA-wrpw-pmr8-qgj7
ExploitThird Party Advisory
icinga.com / blog/2021/07/15/releasing-icinga-2-12-5-and-2-11-10
ExploitVendor Advisory
lists.debian.org / debian-lts-announce/2021/11/msg00010.html
Mailing ListThird Party Advisory