CVE-2026-58224

MEDIUMPre-NVD 6.56.5—
EchelonGraph scoreMEDIUM confidence

Score 6.5 from GitHub Security Advisory published 2026-08-14. a secondary CVSS source baseline 6.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this week
6.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 6.5Exploit: None knownExposed: 0

A fix is available — apply it.

A flaw was found in Samba's CTDB, the clustered database service used by Samba. Insufficient integrity validation of received CTDB protocol packets allows malformed packets containing invalid field lengths, improperly terminated strings, or inconsistent packet sizes to be processed without adequate bounds checking. A remote attacker with access to the CTDB private network may trigger a denial of service through process crashes or excessive memory consumption and, in limited cases, disclose adjacent memory contents.

CVSS v3
6.5
EG Score
6.5(medium)
EG Risk
29(Track)
EG Risk 29/100SSVC: 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
Severity65% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
22%
KEV
Not listed

Published

August 14, 2026

Last Modified

August 31, 2026

Advisory Details (4)

Auto-updated Aug 14, 2026
Patch available. Sources: redhat.
generic

Samba - Security Announcement Archive

https://www.samba.org/samba/security/CVE-2026-58224-advisory.html
generic

16085 – (CVE-2026-58224) [SECURITY] CVE-2026-58224: CTDB: heap OOB read via unchecked packet length fields

https://bugzilla.samba.org/show_bug.cgi?id=16085
redhat

2502720 – (CVE-2026-58224) CVE-2026-58224 samba: CTDB fails to do integrity checking of received packets

https://bugzilla.redhat.com/show_bug.cgi?id=2502720
redhat Patch Available

CVE-2026-58224 - 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-2026-58224

Vendor Advisories for CVE-2026-58224(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 (2:4.23.6+dfsg-1ubuntu2.2) @ resolute2026-09-18ubuntu

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

(3 across 3 ecosystems)
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 27× in last 7d / 115× 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 143 total refreshes for this CVE.

  1. 2026-09-18 19:28 UTCEPSS rescore
  2. 2026-09-18 12:48 UTCEG score recompute
  3. 2026-09-18 12:48 UTCVendor advisory
  4. 2026-09-18 12:48 UTCGHSA enrichment
  5. 2026-09-17 19:31 UTCEPSS rescore
  6. 2026-09-17 11:58 UTCEG score recompute
  7. 2026-09-17 11:58 UTCVendor advisory
  8. 2026-09-17 11:58 UTCGHSA enrichment
  9. 2026-09-16 14:08 UTCEPSS rescore
  10. 2026-09-16 10:27 UTCEG score recompute
  11. 2026-09-16 10:27 UTCVendor advisory
  12. 2026-09-16 10:27 UTCGHSA enrichment
  13. 2026-09-16 05:15 UTCEPSS rescore
  14. 2026-09-15 09:03 UTCEG score recompute
  15. 2026-09-15 09:03 UTCVendor advisory
  16. 2026-09-15 09:03 UTCGHSA enrichment
  17. 2026-09-15 03:11 UTCEPSS rescore
  18. 2026-09-14 08:39 UTCEG score recompute
  19. 2026-09-14 08:39 UTCVendor advisory
  20. 2026-09-14 08:39 UTCGHSA enrichment
  21. 2026-09-13 16:47 UTCEPSS rescore
  22. 2026-09-13 08:16 UTCEG score recompute
  23. 2026-09-13 08:16 UTCVendor advisory
  24. 2026-09-13 08:16 UTCGHSA enrichment
  25. 2026-09-12 07:53 UTCEG score recompute
Show 75 more
  1. 2026-09-12 07:53 UTCVendor advisory
  2. 2026-09-12 07:53 UTCGHSA enrichment
  3. 2026-09-11 14:53 UTCEPSS rescore
  4. 2026-09-11 07:24 UTCEG score recompute
  5. 2026-09-11 07:24 UTCVendor advisory
  6. 2026-09-11 07:24 UTCGHSA enrichment
  7. 2026-09-10 09:35 UTCEPSS rescore
  8. 2026-09-10 07:01 UTCVendor advisory
  9. 2026-09-10 07:01 UTCGHSA enrichment
  10. 2026-09-09 06:37 UTCEG score recompute
  11. 2026-09-09 06:37 UTCVendor advisory
  12. 2026-09-09 06:37 UTCGHSA enrichment
  13. 2026-09-08 22:01 UTCEPSS rescore
  14. 2026-09-08 06:14 UTCEG score recompute
  15. 2026-09-08 06:14 UTCVendor advisory
  16. 2026-09-08 06:14 UTCGHSA enrichment
  17. 2026-09-07 16:01 UTCEPSS rescore
  18. 2026-09-07 05:01 UTCEG score recompute
  19. 2026-09-07 05:01 UTCVendor advisory
  20. 2026-09-07 05:01 UTCGHSA enrichment
  21. 2026-09-06 13:47 UTCEPSS rescore
  22. 2026-09-06 01:48 UTCEG score recompute
  23. 2026-09-06 01:48 UTCVendor advisory
  24. 2026-09-06 01:48 UTCGHSA enrichment
  25. 2026-09-05 01:24 UTCEG score recompute
  26. 2026-09-05 01:24 UTCVendor advisory
  27. 2026-09-05 01:24 UTCGHSA enrichment
  28. 2026-09-04 05:07 UTCEPSS rescore
  29. 2026-09-04 01:00 UTCGHSA enrichment
  30. 2026-09-02 22:57 UTCEG score recompute
  31. 2026-09-02 22:57 UTCVendor advisory
  32. 2026-09-02 22:57 UTCGHSA enrichment
  33. 2026-09-02 14:12 UTCEPSS rescore
  34. 2026-09-01 13:54 UTCEPSS rescore
  35. 2026-09-01 13:11 UTCEG score recompute
  36. 2026-09-01 13:11 UTCGHSA enrichment
  37. 2026-09-01 04:40 UTCEPSS rescore
  38. 2026-08-31 12:28 UTCEG score recompute
  39. 2026-08-31 12:28 UTCVendor advisory
  40. 2026-08-31 12:28 UTCGHSA enrichment
  41. 2026-08-31 11:40 UTCEG score recompute
  42. 2026-08-31 11:40 UTCVendor advisory
  43. 2026-08-31 11:40 UTCGHSA enrichment
  44. 2026-08-31 07:49 UTCEG score recompute
  45. 2026-08-31 07:49 UTCVendor advisory
  46. 2026-08-31 07:49 UTCGHSA enrichment
  47. 2026-08-30 19:17 UTCEPSS rescore
  48. 2026-08-30 07:25 UTCEG score recompute
  49. 2026-08-30 07:25 UTCVendor advisory
  50. 2026-08-30 07:25 UTCGHSA enrichment
  51. 2026-08-30 01:22 UTCEPSS rescore
  52. 2026-08-29 06:55 UTCEG score recompute
  53. 2026-08-29 06:55 UTCVendor advisory
  54. 2026-08-29 06:55 UTCGHSA enrichment
  55. 2026-08-28 21:42 UTCEPSS rescore
  56. 2026-08-27 19:30 UTCEG score recompute
  57. 2026-08-27 19:30 UTCVendor advisory
  58. 2026-08-27 19:30 UTCGHSA enrichment
  59. 2026-08-27 14:25 UTCEPSS rescore
  60. 2026-08-26 16:55 UTCEG score recompute
  61. 2026-08-26 16:55 UTCVendor advisory
  62. 2026-08-26 16:55 UTCGHSA enrichment
  63. 2026-08-26 16:03 UTCEG score recompute
  64. 2026-08-26 16:03 UTCVendor advisory
  65. 2026-08-26 16:03 UTCGHSA enrichment
  66. 2026-08-26 15:41 UTCEG score recompute
  67. 2026-08-26 15:41 UTCVendor advisory
  68. 2026-08-26 15:41 UTCGHSA enrichment
  69. 2026-08-26 14:46 UTCEPSS rescore
  70. 2026-08-26 05:38 UTCEG score recompute
  71. 2026-08-26 05:38 UTCVendor advisory
  72. 2026-08-26 05:38 UTCGHSA enrichment
  73. 2026-08-25 13:49 UTCEPSS rescore
  74. 2026-08-25 05:14 UTCEG score recompute
  75. 2026-08-25 05:14 UTCVendor advisory

Frequently asked(5)

What is CVE-2026-58224?
CVE-2026-58224 is a medium vulnerability published on August 14, 2026. A flaw was found in Samba's CTDB, the clustered database service used by Samba. Insufficient integrity validation of received CTDB protocol packets allows malformed packets containing invalid field lengths, improperly terminated strings, or inconsistent packet sizes to be processed without adequate…
When was CVE-2026-58224 disclosed?
CVE-2026-58224 was first published in the National Vulnerability Database on August 14, 2026, with the most recent update on August 31, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-58224 actively exploited?
CVE-2026-58224 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 78.2% of all scored CVEs.
What is the CVSS score of CVE-2026-58224?
CVE-2026-58224 has a CVSS v3 base score of 6.5 (NVD).
How do I remediate CVE-2026-58224?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-58224, 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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