CVE-2026-47634

HIGHNVD 5.47.3▲
EchelonGraph scoreMEDIUM confidence

Score 7.3 from GitHub Security Advisory (severity: HIGH) published 2026-06-09. NVD baseline CVSS 5.4; sources differ by 1.9.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 4 sources updated this week
7.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 5.4Exploit: 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 in output used by a downstream component ('injection') in Microsoft Office SharePoint allows an authorized attacker to perform spoofing over a network.

CVSS v3
5.4
EG Score
7.3(medium)
EG Risk
33(Track)
EG Risk 33/100SSVC: 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
Severity73% × 45%
Exploitation1% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
44%
KEV
Not listed

Published

June 9, 2026

Last Modified

August 25, 2026

Advisory Details (1)

Auto-updated Jun 14, 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-2026-47634

Vendor Advisories for CVE-2026-47634(2)

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

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 17× in last 7d / 125× 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 329 total refreshes for this CVE.

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

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-47634?
CVE-2026-47634 is a high vulnerability published on June 9, 2026. Improper neutralization of special elements in output used by a downstream component ('injection') in Microsoft Office SharePoint allows an authorized attacker to perform spoofing over a network.
When was CVE-2026-47634 disclosed?
CVE-2026-47634 was first published in the National Vulnerability Database on June 9, 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-2026-47634 actively exploited?
CVE-2026-47634 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 55.7% of all scored CVEs.
What is the CVSS score of CVE-2026-47634?
CVE-2026-47634 has a CVSS v3 base score of 5.4 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 7.3.
How do I remediate CVE-2026-47634?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-47634, 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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