CVE-2026-56168

MEDIUMPre-NVD 6.56.5—
EchelonGraph scoreMEDIUM confidence

Score 6.5 from GitHub Security Advisory published 2026-07-14. the CNA's CVSS baseline 6.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cna:microsoft, epss, ghsa
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: 1%CVSS: 6.5Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

Null pointer dereference in Windows SMB Server allows an authorized attacker to deny service over a network.

CVSS v3
6.5
EG Score
6.5(medium)
EG Risk
30(Track)
EG Risk 30/100SSVC: 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%
Exploitation1% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
65%
KEV
Not listed

Published

July 14, 2026

Last Modified

September 9, 2026

Advisory Details (1)

Auto-updated Jul 15, 2026
Patch available. Sources: microsoft.
microsoft Patch Available

Security Update Guide - Microsoft Security Response Center

Security Update Guide - Microsoft Security Response Center. Patch available via Microsoft Security Update

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-56168

Vendor Advisories for CVE-2026-56168(2)

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

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 18× in last 7d / 108× 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 213 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-56168?
CVE-2026-56168 is a medium vulnerability published on July 14, 2026. Null pointer dereference in Windows SMB Server allows an authorized attacker to deny service over a network.
When was CVE-2026-56168 disclosed?
CVE-2026-56168 was first published in the National Vulnerability Database on July 14, 2026, with the most recent update on September 9, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-56168 actively exploited?
CVE-2026-56168 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 35.3% of all scored CVEs.
What is the CVSS score of CVE-2026-56168?
CVE-2026-56168 has a CVSS v4.0 base score of 6.5 (CNA self-assessment; NVD's own analysis pending).
How do I remediate CVE-2026-56168?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-56168, 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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