CVE-2026-64922

MEDIUMNVD 5.45.4—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 5.4 under NVD CVSS v3. EPSS exploit probability: 0.6% (45th percentile of EPSS-scored CVEs). GitHub Security Advisory enrichment pending alignment with NVD CVSS.

Triggered by: NVD CVSS baseline
Sources: epss, ghsa, nvd
Trending — 4 sources updated this week
5.4EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.6%CVSS: 5.4Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office SharePoint allows an authorized attacker to perform spoofing over a network.

CVSS v3
5.4
EG Score
5.4MEDIUMmedium confidence
EG Risk
25
EG Risk 25/100CISA SSVC

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
Severity54% × 45%
Exploitation1% × 40%
Automatability0% × 15%
CISA SSVC: Track at every mission impact level.
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.6%
EPSS %ILE
45th
KEV
Not listed

CISA SSVCTrack at every mission impact level.

A fix is available. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

August 11, 2026

Last Modified

September 29, 2026

Advisory Details (1)

Auto-updated Aug 11, 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-2026-64922

Vendor Advisories for CVE-2026-64922(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 21× in last 7d / 110× 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 285 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-64922?
CVE-2026-64922 is a medium vulnerability published on August 11, 2026. Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office SharePoint allows an authorized attacker to perform spoofing over a network.
When was CVE-2026-64922 disclosed?
CVE-2026-64922 was first published on August 11, 2026, with the most recent update on September 29, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-64922 actively exploited?
CVE-2026-64922 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.6% probability of exploitation in the next 30 days (45th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-64922?
CVE-2026-64922 has a CVSS v3 base score of 5.4 (NVD).
How do I remediate CVE-2026-64922?
A fix for CVE-2026-64922 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-64922 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-64922

Explore →

Is Your Infrastructure Affected by CVE-2026-64922?

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

Book a Demo →Browse All CVEs