CVE-2026-58222

HIGHPre-NVD 8.88.8—
EchelonGraph scoreMEDIUM confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2026-07-30. a secondary CVSS source baseline 8.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this week
8.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.8Exploit: None knownExposed: 0

A fix is available — apply it.

A security flaw combining LDAP filter injection and improper authorization checks was found in Samba Active Directory Domain Controller (AD DC). When processing LDAP Compare requests, Samba fails to properly validate user-supplied attribute names and executes the resulting internal database search in a trusted context, bypassing normal Access Control List (ACL) enforcement. An authenticated low-privilege domain user can exploit these flaws to disclose confidential Active Directory attributes that would normally be inaccessible. The disclosed information may be leveraged to derive sensitive authentication material, potentially leading to privilege escalation and complete domain compromise. For example: In deployments configured with Group Managed Service Accounts (gMSAs), an attacker can extract the "msKds-RootKeyData" attribute and derive gMSA passwords offline, potentially leading to complete domain compromise if privileged gMSAs are present.

CVSS v3
8.8
EG Score
8.8(medium)
EG Risk
44(Track)
EG Risk 44/100SSVC: 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%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
39%
KEV
Not listed

Published

July 30, 2026

Last Modified

July 30, 2026

Advisory Details (4)

Auto-updated Jul 30, 2026
Patch available. Sources: redhat.
generic

Samba - Security Announcement Archive

https://www.samba.org/samba/security/CVE-2026-58222.html
generic

16148 – (CVE-2026-58222) [SECURITY] CVE-2026-58222: LDAP Compare filter injection and trusted-request confusion disclose protected attributes

https://bugzilla.samba.org/show_bug.cgi?id=16148
redhat

2502722 – (CVE-2026-58222) CVE-2026-58222 samba: Samba AD LDAP Compare filter injection and trusted-request confusion disclose protected attributes

https://bugzilla.redhat.com/show_bug.cgi?id=2502722
redhat Patch Available

cve-details

https://access.redhat.com/security/cve/CVE-2026-58222

Vendor Advisories for CVE-2026-58222(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(1)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntuwinbind (2:4.19.5+dfsg-4ubuntu9.7) @ noble2026-09-19ubuntu

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:11(1)
PackageVulnerable rangeFixed inDependents
samba2:4.13.13+dfsg-1 ... 2:4.24.5+dfsg-1~bpo13+1 (245 versions)——
Debian:12(1)
PackageVulnerable rangeFixed inDependents
samba2:4.17.10+dfsg-0+deb12u1 ... 2:4.25.0~rc1+dfsg-1 (175 versions)——
Debian:13(1)
PackageVulnerable rangeFixed inDependents
samba2:4.22.10+dfsg-0+deb13u1 ... 2:4.22.8+dfsg-0+deb13u2 (9 versions)2:4.22.10+dfsg-0+deb13u2—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
samba2:4.22.3+dfsg-4 ... 2:4.24.5+dfsg-1~bpo13+1 (34 versions)2:4.24.5+dfsg-1—

Weakness Classification(1)

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

All Vendor Advisories

(1)

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 35× in last 7d / 137× 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 264 total refreshes for this CVE.

  1. 2026-09-19 04:16 UTCEG score recompute
  2. 2026-09-19 04:16 UTCVendor advisory
  3. 2026-09-19 04:15 UTCGHSA enrichment
  4. 2026-09-18 19:28 UTCEPSS rescore
  5. 2026-09-18 13:35 UTCVendor advisory
  6. 2026-09-18 13:35 UTCGHSA enrichment
  7. 2026-09-18 01:22 UTCEG score recompute
  8. 2026-09-18 01:22 UTCVendor advisory
  9. 2026-09-18 01:22 UTCGHSA enrichment
  10. 2026-09-17 19:31 UTCEPSS rescore
  11. 2026-09-17 01:29 UTCEG score recompute
  12. 2026-09-17 01:29 UTCVendor advisory
  13. 2026-09-17 01:29 UTCGHSA enrichment
  14. 2026-09-16 14:08 UTCEPSS rescore
  15. 2026-09-16 05:35 UTCEG score recompute
  16. 2026-09-16 05:35 UTCVendor advisory
  17. 2026-09-16 05:35 UTCGHSA enrichment
  18. 2026-09-16 05:15 UTCEPSS rescore
  19. 2026-09-15 03:18 UTCEG score recompute
  20. 2026-09-15 03:18 UTCVendor advisory
  21. 2026-09-15 03:18 UTCGHSA enrichment
  22. 2026-09-15 03:11 UTCEPSS rescore
  23. 2026-09-14 14:14 UTCVendor advisory
  24. 2026-09-14 14:14 UTCGHSA enrichment
  25. 2026-09-14 01:09 UTCEG score recompute
Show 75 more
  1. 2026-09-14 01:09 UTCVendor advisory
  2. 2026-09-14 01:09 UTCGHSA enrichment
  3. 2026-09-13 16:47 UTCEPSS rescore
  4. 2026-09-13 13:33 UTCVendor advisory
  5. 2026-09-13 13:33 UTCGHSA enrichment
  6. 2026-09-13 01:57 UTCEG score recompute
  7. 2026-09-13 01:57 UTCVendor advisory
  8. 2026-09-13 01:57 UTCGHSA enrichment
  9. 2026-09-12 14:19 UTCVendor advisory
  10. 2026-09-12 14:19 UTCGHSA enrichment
  11. 2026-09-12 02:42 UTCVendor advisory
  12. 2026-09-12 02:42 UTCGHSA enrichment
  13. 2026-09-11 14:59 UTCEG score recompute
  14. 2026-09-11 14:59 UTCVendor advisory
  15. 2026-09-11 14:59 UTCGHSA enrichment
  16. 2026-09-11 14:53 UTCEPSS rescore
  17. 2026-09-11 02:46 UTCVendor advisory
  18. 2026-09-11 02:46 UTCGHSA enrichment
  19. 2026-09-10 15:09 UTCEG score recompute
  20. 2026-09-10 15:09 UTCVendor advisory
  21. 2026-09-10 15:09 UTCGHSA enrichment
  22. 2026-09-10 09:35 UTCEPSS rescore
  23. 2026-09-10 03:33 UTCVendor advisory
  24. 2026-09-10 03:33 UTCGHSA enrichment
  25. 2026-09-09 07:15 UTCEG score recompute
  26. 2026-09-09 07:15 UTCVendor advisory
  27. 2026-09-09 07:15 UTCGHSA enrichment
  28. 2026-09-08 22:01 UTCEPSS rescore
  29. 2026-09-07 19:53 UTCEG score recompute
  30. 2026-09-07 19:53 UTCVendor advisory
  31. 2026-09-07 19:53 UTCGHSA enrichment
  32. 2026-09-07 16:01 UTCEPSS rescore
  33. 2026-09-06 18:17 UTCEG score recompute
  34. 2026-09-06 18:17 UTCVendor advisory
  35. 2026-09-06 18:17 UTCGHSA enrichment
  36. 2026-09-06 13:47 UTCEPSS rescore
  37. 2026-09-06 06:39 UTCVendor advisory
  38. 2026-09-06 06:39 UTCGHSA enrichment
  39. 2026-09-05 18:50 UTCEG score recompute
  40. 2026-09-05 18:50 UTCVendor advisory
  41. 2026-09-05 18:50 UTCGHSA enrichment
  42. 2026-09-05 04:53 UTCEG score recompute
  43. 2026-09-05 04:53 UTCVendor advisory
  44. 2026-09-05 04:53 UTCGHSA enrichment
  45. 2026-09-04 11:27 UTCEG score recompute
  46. 2026-09-04 11:27 UTCVendor advisory
  47. 2026-09-04 11:27 UTCGHSA enrichment
  48. 2026-09-04 05:07 UTCEPSS rescore
  49. 2026-09-02 14:12 UTCEPSS rescore
  50. 2026-09-01 22:37 UTCEG score recompute
  51. 2026-09-01 22:37 UTCVendor advisory
  52. 2026-09-01 22:37 UTCGHSA enrichment
  53. 2026-09-01 13:54 UTCEPSS rescore
  54. 2026-09-01 04:40 UTCEPSS rescore
  55. 2026-08-31 23:33 UTCVendor advisory
  56. 2026-08-31 23:33 UTCGHSA enrichment
  57. 2026-08-30 21:49 UTCEG score recompute
  58. 2026-08-30 21:49 UTCVendor advisory
  59. 2026-08-30 21:49 UTCGHSA enrichment
  60. 2026-08-30 19:17 UTCEPSS rescore
  61. 2026-08-30 10:12 UTCEG score recompute
  62. 2026-08-30 10:12 UTCVendor advisory
  63. 2026-08-30 10:12 UTCGHSA enrichment
  64. 2026-08-30 01:22 UTCEPSS rescore
  65. 2026-08-29 22:34 UTCEG score recompute
  66. 2026-08-29 22:34 UTCVendor advisory
  67. 2026-08-29 22:34 UTCGHSA enrichment
  68. 2026-08-28 21:42 UTCEPSS rescore
  69. 2026-08-28 01:09 UTCEG score recompute
  70. 2026-08-28 01:08 UTCGHSA enrichment
  71. 2026-08-27 14:25 UTCEPSS rescore
  72. 2026-08-27 13:27 UTCVendor advisory
  73. 2026-08-27 13:27 UTCGHSA enrichment
  74. 2026-08-27 01:50 UTCEG score recompute
  75. 2026-08-27 01:50 UTCVendor advisory

Frequently asked(5)

What is CVE-2026-58222?
CVE-2026-58222 is a high vulnerability published on July 30, 2026. A security flaw combining LDAP filter injection and improper authorization checks was found in Samba Active Directory Domain Controller (AD DC). When processing LDAP Compare requests, Samba fails to properly validate user-supplied attribute names and executes the resulting internal database search…
When was CVE-2026-58222 disclosed?
CVE-2026-58222 was first published in the National Vulnerability Database on July 30, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-58222 actively exploited?
CVE-2026-58222 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 60.8% of all scored CVEs.
What is the CVSS score of CVE-2026-58222?
CVE-2026-58222 has a CVSS v3 base score of 8.8 (NVD).
How do I remediate CVE-2026-58222?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-58222, 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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