CVE-2026-24301

HIGHNVD 7.58.8▲
EchelonGraph scoreMEDIUM confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2026-08-18. NVD baseline CVSS 7.5; sources differ by 1.3.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 4 sources updated this week
8.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 3%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 Microsoft Copilot allows an unauthorized attacker to disclose information over a network.

CVSS v3
7.5
EG Score
8.8(medium)
EG Risk
41(Track)
EG Risk 41/100SSVC: 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
Severity88% × 45%
Exploitation3% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
3%
EPSS %ILE
85%
KEV
Not listed

Published

August 18, 2026

Last Modified

September 16, 2026

Advisory Details (1)

Auto-updated Aug 18, 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-2026-24301

Vendor Advisories for CVE-2026-24301(1)

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.

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 40× in last 7d / 196× 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. 2026-09-21 09:42 UTCVendor advisory
  2. 2026-09-21 09:42 UTCGHSA enrichment
  3. 2026-09-20 22:31 UTCVendor advisory
  4. 2026-09-20 22:31 UTCGHSA enrichment
  5. 2026-09-20 11:19 UTCVendor advisory
  6. 2026-09-20 11:19 UTCGHSA enrichment
  7. 2026-09-20 00:08 UTCEG score recompute
  8. 2026-09-20 00:08 UTCVendor advisory
  9. 2026-09-20 00:08 UTCGHSA enrichment
  10. 2026-09-19 12:57 UTCVendor advisory
  11. 2026-09-19 12:57 UTCGHSA enrichment
  12. 2026-09-19 01:44 UTCEG score recompute
  13. 2026-09-19 01:44 UTCVendor advisory
  14. 2026-09-19 01:44 UTCGHSA enrichment
  15. 2026-09-18 19:27 UTCEPSS rescore
  16. 2026-09-18 14:27 UTCVendor advisory
  17. 2026-09-18 14:27 UTCGHSA enrichment
  18. 2026-09-18 02:53 UTCEG score recompute
  19. 2026-09-18 02:53 UTCVendor advisory
  20. 2026-09-18 02:53 UTCGHSA enrichment
  21. 2026-09-17 15:42 UTCVendor advisory
  22. 2026-09-17 15:41 UTCGHSA enrichment
  23. 2026-09-17 04:10 UTCVendor advisory
  24. 2026-09-17 04:10 UTCGHSA enrichment
  25. 2026-09-16 16:58 UTCVendor advisory
Show 75 more
  1. 2026-09-16 16:58 UTCGHSA enrichment
  2. 2026-09-16 16:05 UTCEG score recompute
  3. 2026-09-16 16:05 UTCVendor advisory
  4. 2026-09-16 16:05 UTCGHSA enrichment
  5. 2026-09-16 14:07 UTCEPSS rescore
  6. 2026-09-16 05:15 UTCEPSS rescore
  7. 2026-09-16 04:53 UTCVendor advisory
  8. 2026-09-16 04:53 UTCGHSA enrichment
  9. 2026-09-15 17:05 UTCVendor advisory
  10. 2026-09-15 17:05 UTCGHSA enrichment
  11. 2026-09-15 05:53 UTCEG score recompute
  12. 2026-09-15 05:53 UTCVendor advisory
  13. 2026-09-15 05:53 UTCGHSA enrichment
  14. 2026-09-14 17:55 UTCVendor advisory
  15. 2026-09-14 17:55 UTCGHSA enrichment
  16. 2026-09-14 12:22 UTCVendor advisory
  17. 2026-09-14 12:22 UTCGHSA enrichment
  18. 2026-09-14 01:11 UTCEG score recompute
  19. 2026-09-14 01:11 UTCVendor advisory
  20. 2026-09-14 01:11 UTCGHSA enrichment
  21. 2026-09-13 16:47 UTCEPSS rescore
  22. 2026-09-13 14:00 UTCVendor advisory
  23. 2026-09-13 14:00 UTCGHSA enrichment
  24. 2026-09-13 02:49 UTCVendor advisory
  25. 2026-09-13 02:49 UTCGHSA enrichment
  26. 2026-09-12 15:37 UTCEG score recompute
  27. 2026-09-12 15:37 UTCVendor advisory
  28. 2026-09-12 15:37 UTCGHSA enrichment
  29. 2026-09-12 15:01 UTCEPSS rescore
  30. 2026-09-12 04:26 UTCVendor advisory
  31. 2026-09-12 04:26 UTCGHSA enrichment
  32. 2026-09-11 17:14 UTCVendor advisory
  33. 2026-09-11 17:14 UTCGHSA enrichment
  34. 2026-09-11 15:56 UTCVendor advisory
  35. 2026-09-11 15:56 UTCGHSA enrichment
  36. 2026-09-11 15:35 UTCEG score recompute
  37. 2026-09-11 15:35 UTCVendor advisory
  38. 2026-09-11 15:35 UTCGHSA enrichment
  39. 2026-09-11 14:52 UTCEPSS rescore
  40. 2026-09-11 05:50 UTCGHSA enrichment
  41. 2026-09-10 18:39 UTCEG score recompute
  42. 2026-09-10 18:39 UTCGHSA enrichment
  43. 2026-09-10 18:37 UTCNVD updateCVSS v3 → 7.5
  44. 2026-09-10 15:55 UTCEG score recompute
  45. 2026-09-10 15:55 UTCGHSA enrichment
  46. 2026-09-10 09:34 UTCEPSS rescore
  47. 2026-09-10 07:36 UTCGHSA enrichment
  48. 2026-09-09 20:24 UTCVendor advisory
  49. 2026-09-09 20:24 UTCGHSA enrichment
  50. 2026-09-09 09:16 UTCVendor advisory
  51. 2026-09-09 09:16 UTCGHSA enrichment
  52. 2026-09-08 22:04 UTCEG score recompute
  53. 2026-09-08 22:04 UTCVendor advisory
  54. 2026-09-08 22:04 UTCGHSA enrichment
  55. 2026-09-08 22:00 UTCEPSS rescore
  56. 2026-09-08 18:18 UTCVendor advisory
  57. 2026-09-08 18:18 UTCGHSA enrichment
  58. 2026-09-08 04:15 UTCVendor advisory
  59. 2026-09-08 04:15 UTCGHSA enrichment
  60. 2026-09-07 17:03 UTCEG score recompute
  61. 2026-09-07 17:03 UTCVendor advisory
  62. 2026-09-07 17:03 UTCGHSA enrichment
  63. 2026-09-07 16:01 UTCEPSS rescore
  64. 2026-09-07 05:52 UTCVendor advisory
  65. 2026-09-07 05:52 UTCGHSA enrichment
  66. 2026-09-06 18:40 UTCEG score recompute
  67. 2026-09-06 18:40 UTCVendor advisory
  68. 2026-09-06 18:40 UTCGHSA enrichment
  69. 2026-09-06 13:47 UTCEPSS rescore
  70. 2026-09-06 13:47 UTCEPSS rescore
  71. 2026-09-06 07:28 UTCGHSA enrichment
  72. 2026-09-05 20:16 UTCEG score recompute
  73. 2026-09-05 20:16 UTCVendor advisory
  74. 2026-09-05 20:16 UTCGHSA enrichment
  75. 2026-09-05 09:04 UTCVendor advisory

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-24301?
CVE-2026-24301 is a high vulnerability published on August 18, 2026. Improper neutralization of special elements used in a command ('command injection') in Microsoft Copilot allows an unauthorized attacker to disclose information over a network.
When was CVE-2026-24301 disclosed?
CVE-2026-24301 was first published in the National Vulnerability Database on August 18, 2026, with the most recent update on September 16, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-24301 actively exploited?
CVE-2026-24301 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 3% probability of exploitation in the next 30 days, which ranks it in the top 15.0% of all scored CVEs.
What is the CVSS score of CVE-2026-24301?
CVE-2026-24301 has a CVSS v3 base score of 7.5 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 8.8.
How do I remediate CVE-2026-24301?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-24301, 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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