CVE-2026-62896

CRITICALPre-NVD 9.69.6—
EchelonGraph scoreHIGH confidence

Score 9.6 from GitHub Security Advisory (severity: CRITICAL) published 2026-08-07. the CNA's CVSS baseline 9.6; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cna:microsoft, epss, ghsa
Trending — 4 sources updated this week
9.6EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 9.6Exploit: None knownExposed: 0

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

Improper authentication in Microsoft Teams allows an authorized attacker to elevate privileges over a network.

CVSS v3
9.6
EG Score
9.6(high)
EG Risk
43(Track)
EG Risk 43/100SSVC: 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
Severity96% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
32%
KEV
Not listed

Published

August 6, 2026

Last Modified

August 20, 2026

Advisory Details (1)

Auto-updated Aug 16, 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-2026-62896

Vendor Advisories for CVE-2026-62896(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 129× in last 7d / 254× 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 254 total refreshes for this CVE.

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

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-62896?
CVE-2026-62896 is a critical vulnerability published on August 6, 2026. Improper authentication in Microsoft Teams allows an authorized attacker to elevate privileges over a network.
When was CVE-2026-62896 disclosed?
CVE-2026-62896 was first published in the National Vulnerability Database on August 6, 2026, with the most recent update on August 20, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-62896 actively exploited?
CVE-2026-62896 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 68.5% of all scored CVEs.
What is the CVSS score of CVE-2026-62896?
CVE-2026-62896 has a CVSS v4.0 base score of 9.6 (CNA self-assessment; NVD's own analysis pending).
How do I remediate CVE-2026-62896?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-62896, 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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