vciy

CVE-2021-32743

INDEX BUILT · 2026-09-20

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Passwords used to access external services inadvertently exposed through API

CVE-2021-327434 of 4 sources documented this
27

rank 27 = 0 + 22 + 0 + 5 + 0

rank@v1 · scheduled

Someone is already using it

CISA KEV catalog · public proof-of-concept · FIRST EPSS

EPSS 0.01803  ·  without this subject the record ranks 27

What it costs you if it fires

NVD CVSS base score, then the CNA's own

CVSS 8.8, from NVD  ·  without this subject the record ranks 5

It is getting worse, not staying still

FIRST EPSS series, rescorings and bad loads removed

no persisting rise in 365 days  ·  without this subject the record ranks 27

How much of the world it touches

NVD CPE configurations

3 products in the CPE ranges  ·  without this subject the record ranks 22

Someone else already set the date

CISA KEV remediation due date

no CISA due date  ·  without this subject the record ranks 27

Unaudited dollar value2 of 3 inputs carry a receipt
Exposure$90,000over the next 30 days, if this record is yours
Movement-$542,000on 2022-04-01, the last material move, 4 years, 2 months before this reading
Basisassumeda published average, not your estate

$90,000 = $4.99M incident cost x 1 exposure x 0.01803 likelihood

udv@v1 · unaudited · wrong for you until you say what you run

$4.99M is the cost of a breach that happened, from IBM Cost of a Data Breach Report 2026, global average. It is not the value of any asset of yours. That average already covers breaches of every severity, so scaling it by exposure understates a partial-impact record. That is an assumption, not a measurement. Your own asset value goes in the decision record.

Hindsight · the state

0.01803EPSSNOT IN KEVas of 2026-09-20
Severity8.8 HIGHreceipt
Harmtotal lossreceipt
Exploitationnone in held sources
Defenseunaffected versions publishedreceipt
Movementscoring model changedreceipt
PLATEAU10Minimal movement since 2021-07-16, 1795 days at 0.02, as of 2026-06-15. arc-rules@v1

Foresight · where to check next

No weakness class or product neighbourhood is held for this record, so this index cannot name anywhere to check next. That is an absence in the record, not a finding about the software.

Color is a claim, not decoration:the hostile worldthe defenseno signal

Running Icinga icinga2? Check your version

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Harm, if it fires from the vector and the weakness

Written for the ticket you're about to file.

Reachnetwork-reachable · low privileges required · no user interaction · low attack complexityreceipt
ImpactComplete confidentiality, integrity and availability lossreceipt
Scored fromCVSS v3.1 · the CNA's vectorreceipt
Weakness classCWE-202 Exposure of Sensitive Information Through Data Queriesreceipt
Published consequencesCWE-202: Confidentiality: Read Files or Directories, Read Application Data[email protected]

CISA KEV & Federal Remediation Deadline from the record and CISA

The fix, and how long it's been waiting.

First unaffected version, by branchicinga 2.11.10; icinga 2.12.5receipt
Patch available sinceNo dated patch-availability record in held sources. The index holds reference URLs without dates and only the current revision of the CVE record, so the day a fix first existed cannot be derived. Only the versions it landed in.

Exploit Status & Known PoCs a ladder, not a score

Current rung: Nothing observed in held sources.

  • RUNG 1Nothing observed in held sources
  • RUNG 2Proof-of-concept published
  • RUNG 3Exploited in the wild · CISA KEV listed
  • RUNG 4Ransomware campaign use known

Authority who says so

CVSS, the CNA8.8 HIGHreceipt
CVSS, NVD8.8 HIGHreceipt
Exploit probability0.01803 · top 22% of all CVEsreceipt
Blast breadth2 products across 2 vendorsderived
Assigned byGitHub_Mreceipt
Recorded changes30 · last 19 Sep 2026derived

Affected & Fixed Versions as published

Affected productIcinga icinga2receipt
Published rangesicinga >= 2.0.0 < 2.11.10; icinga >= 2.12.0 < 2.12.5; debian linux 9.0receipt

A rung lights from a row in the index, never from an assessment. "Held sources" is the true scope of the claim: this index reads the CVE record, NVD, CISA KEV, FIRST's EPSS and public proof-of-concept repositories, and it does not observe attacks.

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Attack path

Network requestrequires low privilegesIcinga icinga2CWE-202 weaknessFull compromise (C/I/A)C:H / I:H / A:Hexploits CWE-202data compromise

What it is stated by the CNA

Icinga is a monitoring system which checks the availability of network resources, notifies users of outages, and generates performance data for reporting. In versions prior to 2.11.10 and from version 2.12.0 through version 2.12.4, some of the Icinga 2 features that require credentials for external services expose those credentials through the API to authenticated API users with read permissions for the corresponding object types. IdoMysqlConnection and IdoPgsqlConnection (every released version) exposes the password of the user used to connect to the database. IcingaDB (added in 2.12.0) exposes the password used to connect to the Redis server. receipt

Read the rest of the CNA's description

ElasticsearchWriter (added in 2.8.0)exposes the password used to connect to the Elasticsearch server. An attacker who obtains these credentials can impersonate Icinga to these services and add, modify and delete information there. If credentials with more permissions are in use, this increases the impact accordingly. Starting with the 2.11.10 and 2.12.5 releases, these passwords are no longer exposed via the API. As a workaround, API user permissions can be restricted to not allow querying of any affected objects, either by explicitly listing only the required object types for object query permissions, or by applying a filter rule.

NVD's analysis a second authority

severity
8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
weakness
CWE-202
affected versions
icinga >= 2.0.0 < 2.11.10; icinga >= 2.12.0 < 2.12.5; debian linux 9.0
also scored by
[email protected] 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

check it yourself github.com icinga.com lists.debian.org receipt

Dated events

2022-02-04EPSS moved 0.04 to 0.122022-04-01EPSS moved 0.12 to 0.01

Movement the material steps

16 Jul 20210.00624
4 Feb 20220.11752 · crossed 0.10
1 Apr 20220.0089 · crossed 0.10
7 Mar 20230.00272 · scoring model v2023.03.01
17 Mar 20250.00465 · scoring model v2025.03.14
15 Jun 20260.01803 · scoring model v2026.06.15
Show all 30 observations
16 Jul 20210.00624
11 Nov 20210.00833
6 Jan 20220.0363
4 Feb 20220.11752
1 Apr 20220.0089
7 Mar 20230.00272
7 Oct 20230.00326
6 Jun 20240.00319
18 Jul 20240.00453
1 Aug 20240.00642
17 Nov 20240.00647
17 Dec 20240.00399
17 Mar 20250.00465
29 Mar 20250.00902
30 Mar 20250.00465
14 Apr 20250.00455
27 Apr 20250.00617
6 May 20250.0074
1 Oct 20250.00645
27 Oct 20250.0074
28 Oct 20250.00645
4 Nov 20250.01031
18 Nov 20250.00658
21 Nov 20250.01031
25 Dec 20250.00982
27 Dec 20250.01695
7 Jan 20260.00806
15 Jan 20260.00528
16 Jan 20260.00354
15 Jun 20260.01803

30 observations held. A highlighted step crossed a promotion threshold. A step marked with a scoring model moved because the instrument was replaced, not because the vulnerability changed. receipt

The full biography

EPSS 0.01803Published2021-07-15Index as of2026-06-15

The record had been public for 4 years, 11 months when this index was last written.

Published 2021-07-15 receipt · Index as of 2026-06-15 derived

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