CVE-2026-42824

HIGHNVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 7.5 under NVD CVSS v3. EPSS exploit probability: 7.6%, top 6% of all CVEs by exploit prediction. GitHub Security Advisory enrichment pending alignment with NVD CVSS.

Triggered by: NVD CVSS baseline
Sources: epss, ghsa, nvd
Trending — 4 sources updated this week
7.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 8%CVSS: 7.5Exploit: None knownExposed: 0

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

Improper neutralization of special elements used in a command ('command injection') in M365 Copilot allows an unauthorized attacker to disclose information over a network.

CVSS v3
7.5
EG Score
7.5(medium)
EG Risk
37(Track)
EG Risk 37/100SSVC: 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
Severity75% × 45%
Exploitation8% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
8%
EPSS %ILE
94%
KEV
Not listed

Published

June 4, 2026

Last Modified

August 25, 2026

Advisory Details (1)

Auto-updated Jun 12, 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-2026-42824

Vendor Advisories for CVE-2026-42824(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 8× in last 7d / 45× 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 279 total refreshes for this CVE.

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

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-42824?
CVE-2026-42824 is a high vulnerability published on June 4, 2026. Improper neutralization of special elements used in a command ('command injection') in M365 Copilot allows an unauthorized attacker to disclose information over a network.
When was CVE-2026-42824 disclosed?
CVE-2026-42824 was first published in the National Vulnerability Database on June 4, 2026, with the most recent update on August 25, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-42824 actively exploited?
CVE-2026-42824 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 8% probability of exploitation in the next 30 days, which ranks it in the top 5.8% of all scored CVEs.
What is the CVSS score of CVE-2026-42824?
CVE-2026-42824 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2026-42824?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-42824, 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-2026-42824

Explore →

Is Your Infrastructure Affected by CVE-2026-42824?

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

Start Free Scan →Browse All CVEs