CVE-2022-4254

HIGHNVD 8.88.8—
EchelonGraph scoreMEDIUM confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2023-02-01. NVD baseline CVSS 8.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Elevated
8.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 8.8Exploit: Elevated riskExposed: 0

A fix is available — apply it.

sssd: libsss_certmap fails to sanitise certificate data used in LDAP filters

CVSS v3
8.8
EG Score
8.8(medium)
EG Risk
56(Track*)
EG Risk 56/100SSVC: 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%
Exploitation40% × 40%
Automatability0% × 15%
Action: Watch closely — could escalate to Attend.
EPSS PROB
1%
EPSS %ILE
60%
KEV
Not listed

Published

February 1, 2023

Last Modified

March 27, 2025

Advisory Details (5)

Auto-updated Aug 27, 2026
Patch available. Sources: redhat, github_commit.
generic Patch Available

[SECURITY] [DLA 3436-1] sssd security update

https://lists.debian.org/debian-lts-announce/2023/05/msg00028.html
generic

Certificate attributes are not sanitized prior to ldap search · Issue #5135 · SSSD/sssd · GitHub

https://github.com/SSSD/sssd/issues/5135
github_commit Patch Available

commit a2b9a8446042 (SSSD/sssd)

Patch available: SSSD/sssd 2.6.2 (contains commit a2b9a8446042)

https://github.com/SSSD/sssd/commit/a2b9a84460429181f2a4fa7e2bb5ab49fd561274
redhat Patch Available

2149894 – (CVE-2022-4254) CVE-2022-4254 sssd: libsss_certmap fails to sanitise certificate data used in LDAP filters

Affected: Red Hat Enterprise Linux 8.2 Advanced Update Support

https://bugzilla.redhat.com/show_bug.cgi?id=2149894
redhat Patch Available

CVE-2022-4254 - Red Hat Customer Portal

Affected: Red Hat Enterprise Linux 8 or OpenShift Container Platform 4, is affected by this vulnerability and a fix may be released to a

https://access.redhat.com/security/cve/CVE-2022-4254

Patch Availability(4)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntusssd-proxy (2.2.3-3ubuntu0.11) @ focal2026-05-25ubuntu
redhatsssd-0:1.16.5-10.el7_9.152023-01-24redhat
redhatsssd-0:2.2.0-19.el8_1.32023-01-24redhat
redhatsssd-0:2.2.3-20.el8_2.22023-01-24redhat

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

(4 across 4 ecosystems)
Debian:10(1)
PackageVulnerable rangeFixed inDependents
sssd1.16.3-3.1, 1.16.3-3.21.16.3-3.2+deb10u1—
Debian:11(1)
PackageVulnerable rangeFixed inDependents
sssd—2.3.1-1—
Debian:12(1)
PackageVulnerable rangeFixed inDependents
sssd—2.3.1-1—
Debian:13(1)
PackageVulnerable rangeFixed inDependents
sssd—2.3.1-1—

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 4× in last 7d / 24× 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 158 total refreshes for this CVE.

  1. 2026-09-16 14:05 UTCEPSS rescore
  2. 2026-09-16 05:11 UTCEPSS rescore
  3. 2026-09-15 03:07 UTCEPSS rescore
  4. 2026-09-13 16:44 UTCEPSS rescore
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  11. 2026-09-04 16:24 UTCOSV refresh
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  24. 2026-08-20 22:53 UTCEPSS rescore
  25. 2026-08-19 17:01 UTCEPSS rescore
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  1. 2026-08-18 13:45 UTCEPSS rescore
  2. 2026-08-18 03:34 UTCOSV refresh
  3. 2026-08-17 13:44 UTCEPSS rescore
  4. 2026-08-16 14:53 UTCEPSS rescore
  5. 2026-08-16 02:12 UTCEPSS rescore
  6. 2026-08-15 01:27 UTCEPSS rescore
  7. 2026-08-13 21:58 UTCEPSS rescore
  8. 2026-08-12 13:48 UTCEPSS rescore
  9. 2026-08-09 13:44 UTCEPSS rescore
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  11. 2026-08-08 16:34 UTCEPSS rescore
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  18. 2026-08-02 22:27 UTCOSV refresh
  19. 2026-08-02 02:24 UTCEPSS rescore
  20. 2026-08-01 04:13 UTCEPSS rescore
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  22. 2026-07-30 16:25 UTCEPSS rescore
  23. 2026-07-30 01:28 UTCEPSS rescore
  24. 2026-07-28 15:34 UTCEPSS rescore
  25. 2026-07-26 14:52 UTCEPSS rescore
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  27. 2026-07-25 14:16 UTCEPSS rescore
  28. 2026-07-24 14:15 UTCEPSS rescore
  29. 2026-07-23 14:16 UTCEPSS rescore
  30. 2026-07-23 14:16 UTCEPSS rescore
  31. 2026-07-23 02:14 UTCEG score recompute
  32. 2026-07-22 23:02 UTCEG score recompute
  33. 2026-07-22 14:06 UTCEPSS rescore
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  35. 2026-07-21 15:23 UTCEPSS rescore
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  37. 2026-07-20 17:05 UTCEPSS rescore
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  40. 2026-07-19 02:27 UTCEPSS rescore
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  44. 2026-07-16 17:00 UTCEPSS rescore
  45. 2026-07-16 07:19 UTCOSV refresh
  46. 2026-07-15 16:56 UTCEPSS rescore
  47. 2026-07-15 16:56 UTCEPSS rescore
  48. 2026-07-15 01:58 UTCEPSS rescore
  49. 2026-07-15 01:58 UTCEPSS rescore
  50. 2026-07-13 22:28 UTCEPSS rescore
  51. 2026-07-13 22:28 UTCEPSS rescore
  52. 2026-07-13 06:11 UTCEPSS rescore
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  54. 2026-07-12 05:44 UTCEPSS rescore
  55. 2026-07-11 08:25 UTCEPSS rescore
  56. 2026-07-11 08:25 UTCEPSS rescore
  57. 2026-07-09 19:08 UTCEPSS rescore
  58. 2026-07-08 15:13 UTCEPSS rescore
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  69. 2026-06-28 06:52 UTCOSV refresh
  70. 2026-06-28 04:54 UTCEPSS rescore
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  72. 2026-06-27 03:07 UTCEPSS rescore
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  74. 2026-06-25 13:48 UTCEPSS rescore
  75. 2026-06-25 13:48 UTCEPSS rescore

Frequently asked(5)

What is CVE-2022-4254?
CVE-2022-4254 is a high vulnerability published on February 1, 2023. sssd: libsss_certmap fails to sanitise certificate data used in LDAP filters
When was CVE-2022-4254 disclosed?
CVE-2022-4254 was first published in the National Vulnerability Database on February 1, 2023, with the most recent update on March 27, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2022-4254 actively exploited?
CVE-2022-4254 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 40.3% of all scored CVEs.
What is the CVSS score of CVE-2022-4254?
CVE-2022-4254 has a CVSS v3 base score of 8.8 (NVD).
How do I remediate CVE-2022-4254?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2022-4254, 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.

Dependency Blast Radius

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