CVE-2026-49159

MEDIUMPre-NVD 6.56.5—
EchelonGraph scoreMEDIUM confidence

Score 6.5 from GitHub Security Advisory published 2026-07-24. 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.

Exposure of sensitive information to an unauthorized actor in Microsoft Graph allows an authorized attacker to disclose information over a network.

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%
Exploitation1% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
44%
KEV
Not listed

Published

July 24, 2026

Last Modified

August 28, 2026

Advisory Details (1)

Auto-updated Jul 24, 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-2026-49159

Vendor Advisories for CVE-2026-49159(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 28× in last 7d / 124× 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 162 total refreshes for this CVE.

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

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-49159?
CVE-2026-49159 is a medium vulnerability published on July 24, 2026. Exposure of sensitive information to an unauthorized actor in Microsoft Graph allows an authorized attacker to disclose information over a network.
When was CVE-2026-49159 disclosed?
CVE-2026-49159 was first published in the National Vulnerability Database on July 24, 2026, with the most recent update on August 28, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-49159 actively exploited?
CVE-2026-49159 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 56.3% of all scored CVEs.
What is the CVSS score of CVE-2026-49159?
CVE-2026-49159 has a CVSS v4.0 base score of 6.5 (CNA self-assessment; NVD's own analysis pending).
How do I remediate CVE-2026-49159?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-49159, 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

Explore the affected products and dependency analysis for CVE-2026-49159

Explore →

Is Your Infrastructure Affected by CVE-2026-49159?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs