CVE-2022-30550

HIGHNVD 8.88.8—
EchelonGraph scoreMEDIUM confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2022-07-18. NVD baseline CVSS 8.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
8.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 2%CVSS: 8.8Exploit: None knownExposed: 0

A fix is available — apply it.

An issue was discovered in the auth component in Dovecot 2.2 and 2.3 before 2.3.20. When two passdb configuration entries exist with the same driver and args settings, incorrect username_filter and mechanism settings can be applied to passdb definitions. These incorrectly applied settings can lead to an unintended security configuration and can permit privilege escalation in certain configurations. The documentation does not advise against the use of passdb definitions that have the same driver and args settings. One such configuration would be where an administrator wishes to use the same PAM configuration or passwd file for both normal and master users but use the username_filter setting to restrict which of the users is able to be a master user.

CVSS v3
8.8
EG Score
8.8(medium)
EG Risk
40(Track)
EG Risk 40/100SSVC: 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 computed
Severity88% × 45%
Exploitation2% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
2%
EPSS %ILE
82%
KEV
Not listed

Published

July 17, 2022

Last Modified

May 23, 2025

Advisory Details (5)

Auto-updated Aug 26, 2026
Patch available.
generic

oss-security - Re: CVE-2022-30550: Privilege escalation possible in dovecot when similar master and non-master passdbs are used

https://www.openwall.com/lists/oss-security/2022/07/08/1
generic

Dovecot community software repository

https://www.dovecot.org/download/
generic

Dovecot: Privilege Escalation (GLSA 202310-19) — Gentoo security

https://security.gentoo.org/glsa/202310-19
generic Patch Available

[SECURITY] [DLA 3122-1] dovecot security update

https://lists.debian.org/debian-lts-announce/2022/09/msg00032.html
generic

Security | Dovecot | The Secure IMAP server

https://dovecot.org/security

Patch Availability(3)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntudovecot-solr (1:2.3.16+dfsg1-3ubuntu2.1) @ jammy2026-05-25ubuntu
redhatdovecot-1:2.3.16-7.el92022-11-15redhat
redhatdovecot-1:2.3.16-3.el82022-11-08redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(13 across 13 ecosystems)
Alpine:v3.17(1)
PackageVulnerable rangeFixed inDependents
dovecot—2.3.19.1-r5—
Alpine:v3.18(1)
PackageVulnerable rangeFixed inDependents
dovecot—2.3.19.1-r5—
Alpine:v3.19(1)
PackageVulnerable rangeFixed inDependents
dovecot—2.3.19.1-r5—
Alpine:v3.20(1)
PackageVulnerable rangeFixed inDependents
dovecot—2.3.19.1-r5—
Alpine:v3.21(1)
PackageVulnerable rangeFixed inDependents
dovecot—2.3.19.1-r5—
Alpine:v3.22(1)
PackageVulnerable rangeFixed inDependents
dovecot—2.3.19.1-r5—
Alpine:v3.23(1)
PackageVulnerable rangeFixed inDependents
dovecot—2.3.19.1-r5—
Alpine:v3.24(1)
PackageVulnerable rangeFixed inDependents
dovecot—2.3.19.1-r5—
Debian:10(1)
PackageVulnerable rangeFixed inDependents
dovecot1:2.3.4.1-5 ... 1:2.3.4.1-5+deb10u6 (8 versions)1:2.3.4.1-5+deb10u7—
Debian:11(1)
PackageVulnerable rangeFixed inDependents
dovecot1:2.3.13+dfsg1-21:2.3.13+dfsg1-2+deb11u1—
Debian:12(1)
PackageVulnerable rangeFixed inDependents
dovecot—1:2.3.19.1+dfsg1-2—
Debian:13(1)
PackageVulnerable rangeFixed inDependents
dovecot—1:2.3.19.1+dfsg1-2—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
dovecot—1:2.3.19.1+dfsg1-2—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

All Vendor Advisories

(4)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 7× in last 7d / 26× 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.

Showing the most recent 100 of 173 total refreshes for this CVE.

  1. 2026-09-24 17:16 UTCOSV refresh
  2. 2026-09-24 14:00 UTCEPSS rescore
  3. 2026-09-23 13:45 UTCEPSS rescore
  4. 2026-09-22 14:44 UTCEPSS rescore
  5. 2026-09-20 20:13 UTCEPSS rescore
  6. 2026-09-19 15:38 UTCEPSS rescore
  7. 2026-09-18 19:24 UTCEPSS rescore
  8. 2026-09-16 14:05 UTCEPSS rescore
  9. 2026-09-15 03:06 UTCEPSS rescore
  10. 2026-09-12 14:57 UTCEPSS rescore
  11. 2026-09-11 14:49 UTCEPSS rescore
  12. 2026-09-11 09:33 UTCEPSS rescore
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  14. 2026-09-07 15:58 UTCEPSS rescore
  15. 2026-09-06 13:45 UTCEPSS rescore
  16. 2026-09-05 15:25 UTCEPSS rescore
  17. 2026-09-05 09:18 UTCOSV refresh
  18. 2026-09-04 13:57 UTCEPSS rescore
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  20. 2026-09-04 05:04 UTCEPSS rescore
  21. 2026-09-02 14:09 UTCEPSS rescore
  22. 2026-09-01 13:51 UTCEPSS rescore
  23. 2026-08-30 19:14 UTCEPSS rescore
  24. 2026-08-30 01:19 UTCEPSS rescore
  25. 2026-08-28 21:38 UTCEPSS rescore
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  1. 2026-08-27 14:22 UTCEPSS rescore
  2. 2026-08-26 14:43 UTCEPSS rescore
  3. 2026-08-25 13:46 UTCEPSS rescore
  4. 2026-08-24 14:13 UTCEPSS rescore
  5. 2026-08-23 00:16 UTCEPSS rescore
  6. 2026-08-21 23:46 UTCEPSS rescore
  7. 2026-08-20 22:52 UTCEPSS rescore
  8. 2026-08-19 17:01 UTCEPSS rescore
  9. 2026-08-18 19:40 UTCOSV refresh
  10. 2026-08-18 13:45 UTCEPSS rescore
  11. 2026-08-17 13:44 UTCEPSS rescore
  12. 2026-08-16 14:53 UTCEPSS rescore
  13. 2026-08-16 02:11 UTCEPSS rescore
  14. 2026-08-15 01:27 UTCEPSS rescore
  15. 2026-08-13 21:57 UTCEPSS rescore
  16. 2026-08-12 13:48 UTCEPSS rescore
  17. 2026-08-11 13:38 UTCEPSS rescore
  18. 2026-08-09 13:44 UTCEPSS rescore
  19. 2026-08-08 16:34 UTCEPSS rescore
  20. 2026-08-07 16:24 UTCEPSS rescore
  21. 2026-08-06 13:44 UTCEPSS rescore
  22. 2026-08-05 19:15 UTCEPSS rescore
  23. 2026-08-04 15:07 UTCEPSS rescore
  24. 2026-08-04 10:35 UTCEPSS rescore
  25. 2026-08-03 15:57 UTCOSV refresh
  26. 2026-08-03 10:33 UTCEPSS rescore
  27. 2026-08-02 02:24 UTCEPSS rescore
  28. 2026-08-01 04:13 UTCEPSS rescore
  29. 2026-07-30 16:25 UTCEPSS rescore
  30. 2026-07-30 01:28 UTCEPSS rescore
  31. 2026-07-28 15:33 UTCEPSS rescore
  32. 2026-07-26 14:52 UTCEPSS rescore
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  36. 2026-07-23 14:16 UTCEPSS rescore
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  38. 2026-07-23 02:10 UTCEG score recompute
  39. 2026-07-22 22:58 UTCEG score recompute
  40. 2026-07-22 14:06 UTCEPSS rescore
  41. 2026-07-22 14:06 UTCEPSS rescore
  42. 2026-07-21 15:22 UTCEPSS rescore
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  44. 2026-07-20 17:05 UTCEPSS rescore
  45. 2026-07-19 14:29 UTCEPSS rescore
  46. 2026-07-19 02:27 UTCEPSS rescore
  47. 2026-07-19 02:27 UTCEPSS rescore
  48. 2026-07-18 10:03 UTCEPSS rescore
  49. 2026-07-18 10:02 UTCEPSS rescore
  50. 2026-07-17 01:03 UTCOSV refresh
  51. 2026-07-16 17:00 UTCEPSS rescore
  52. 2026-07-15 16:56 UTCEPSS rescore
  53. 2026-07-15 16:56 UTCEPSS rescore
  54. 2026-07-15 01:58 UTCEPSS rescore
  55. 2026-07-15 01:58 UTCEPSS rescore
  56. 2026-07-13 22:27 UTCEPSS rescore
  57. 2026-07-13 06:11 UTCEPSS rescore
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  59. 2026-07-12 05:44 UTCEPSS rescore
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  61. 2026-07-11 08:25 UTCEPSS rescore
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  63. 2026-07-09 19:07 UTCEPSS rescore
  64. 2026-07-08 15:12 UTCEPSS rescore
  65. 2026-07-07 13:44 UTCEPSS rescore
  66. 2026-07-06 16:25 UTCEPSS rescore
  67. 2026-07-06 16:25 UTCEPSS rescore
  68. 2026-07-06 02:21 UTCEPSS rescore
  69. 2026-07-06 02:21 UTCEPSS rescore
  70. 2026-07-05 02:28 UTCEPSS rescore
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  72. 2026-07-04 06:29 UTCEPSS rescore
  73. 2026-07-04 06:29 UTCEPSS rescore
  74. 2026-07-01 15:04 UTCEPSS rescore
  75. 2026-06-30 23:20 UTCEPSS rescore

Related CVEs(same product + same CWE)

Frequently asked(5)

What is CVE-2022-30550?
CVE-2022-30550 is a high vulnerability published on July 17, 2022. An issue was discovered in the auth component in Dovecot 2.2 and 2.3 before 2.3.20. When two passdb configuration entries exist with the same driver and args settings, incorrect usernamefilter and mechanism settings can be applied to passdb definitions. These incorrectly applied settings can lead…
When was CVE-2022-30550 disclosed?
CVE-2022-30550 was first published in the National Vulnerability Database on July 17, 2022, with the most recent update on May 23, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2022-30550 actively exploited?
CVE-2022-30550 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 2% probability of exploitation in the next 30 days, which ranks it in the top 18.0% of all scored CVEs.
What is the CVSS score of CVE-2022-30550?
CVE-2022-30550 has a CVSS v3 base score of 8.8 (NVD).
How do I remediate CVE-2022-30550?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2022-30550, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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