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CVE-2026-65660CISA KEV

Microsoft SharePoint Code Injection Vulnerability

Severity unknownCVSS unknownCheck the vendor advisory for fixed versions

CISA lists this Microsoft vulnerability as known exploited. Its MSRC release detail is outside this installation's collected history.

CISA KEVCheck MSRC

CISA catalog record

Microsoft SharePoint contains a code injection vulnerability which could allow an authorized attacker to execute code over a network.

Product
SharePoint
Added to KEV
25 Sep 2026
Federal remediation due
28 Sep 2026
Known ransomware use
Not reported

What changed

  1. CISA KEV: Listed 25 Sep 2026; remediation due 28 Sep 2026 → Listed 25 Sep 2026 · Title changed
  2. Detection template: Unknown: detection-template evidence is incomplete or retained → No Nuclei template listed
  3. Detection template: No Nuclei template listed → Unknown: detection-template evidence is incomplete or retained
  4. Detection template: No Nuclei template listed · Customer action: Required: apply the update → Required: follow the MSRC remediation guidance · Public disclosure: No → No (MSRC assessment) · Exploitation detected: Not reported by MSRC → No known exploitation (MSRC assessment)
  5. Detection template: Unknown: exploit-code evidence is incomplete or retained → No Nuclei template listed
  6. Detection template: No Nuclei template listed → Unknown: exploit-code evidence is incomplete or retained
Page history

Changes are dated when recorded; day views use the last saved version from that UTC day, and citations stay fixed.

Cite this version
Field-level log (61)

Up to 100 recent field edits are shown; older edits may be outside retention.

  1. 4 Nov 2026 · 21:21:22 UTC Federal remediation due28 Sep 2026
  2. 4 Nov 2026 · 21:21:22 UTC Known ransomware useNot stated
  3. 4 Nov 2026 · 21:21:22 UTC CISA KEVListed 25 Sep 2026; remediation due 28 Sep 2026 → Listed 25 Sep 2026
  4. 4 Nov 2026 · 21:21:22 UTC ProductSharePoint
  5. 4 Nov 2026 · 21:21:22 UTC VendorMicrosoft
  6. 4 Nov 2026 · 21:21:22 UTC Source coverage: public-exploit-codeCurrent → Not collected
  7. 4 Nov 2026 · 21:21:22 UTC Source coverage: first-epssCurrent → Not collected
  8. 4 Nov 2026 · 21:21:22 UTC Source coverage: msrc-cvrfCurrent → Not collected
  9. 4 Nov 2026 · 21:21:22 UTC Link: KB5002906/windows/kb/KB5002906 → No longer listed in this observation
  10. 4 Nov 2026 · 21:21:22 UTC Link: KB5002905/windows/kb/KB5002905 → No longer listed in this observation
  11. 4 Nov 2026 · 21:21:22 UTC Link: KB5002896/windows/kb/KB5002896 → No longer listed in this observation
  12. 4 Nov 2026 · 21:21:22 UTC Link: KB5002894/windows/kb/KB5002894 → No longer listed in this observation
  13. 4 Nov 2026 · 21:21:22 UTC Link: KB5002893/windows/kb/KB5002893 → No longer listed in this observation
  14. 4 Nov 2026 · 21:21:22 UTC Link: August 2026/security?release=2026-Aug#cves → No longer listed in this observation
  15. 4 Nov 2026 · 21:21:22 UTC SourceMicrosoft Security Response Center → CISA Known Exploited Vulnerabilities
  16. 4 Nov 2026 · 21:21:22 UTC SummaryImproper control of generation of code ('code injection') in Microsoft Office SharePoint allows an authorized attacker to execute code over a network. → Microsoft SharePoint contains a code injection vulnerability which could allow an authorized attacker to execute code over a network.
  17. 4 Nov 2026 · 21:21:22 UTC TitleMicrosoft SharePoint Server Remote Code Execution Vulnerability → Microsoft SharePoint Code Injection Vulnerability
  18. 4 Nov 2026 · 03:04:37 UTC EPSS8.2%; scored 2 Nov 2026 → 8.2%; scored 3 Nov 2026
  19. 3 Nov 2026 · 01:53:36 UTC EPSS8.2%; scored 1 Nov 2026 → 8.2%; scored 2 Nov 2026
  20. 2 Nov 2026 · 17:30:39 UTC Public detection templateUnknown: detection-template evidence is incomplete or retained → No Nuclei template listed
  21. 2 Nov 2026 · 17:30:39 UTC Source coverage: public-exploit-codeIncomplete → Current
  22. 2 Nov 2026 · 17:30:39 UTC Source coverage: first-epssIncomplete → Current
  23. 2 Nov 2026 · 17:30:39 UTC Source coverage: msrc-cvrfIncomplete → Current
  24. 2 Nov 2026 · 16:27:39 UTC Public detection templateNo Nuclei template listed → Unknown: detection-template evidence is incomplete or retained
  25. 2 Nov 2026 · 16:27:39 UTC Source coverage: public-exploit-codeCurrent → Incomplete
  26. 2 Nov 2026 · 16:27:39 UTC Source coverage: first-epssCurrent → Incomplete
  27. 2 Nov 2026 · 16:27:39 UTC Source coverage: msrc-cvrfCurrent → Incomplete
  28. 2 Nov 2026 · 00:36:51 UTC EPSS8.2%; scored 31 Oct 2026 → 8.2%; scored 1 Nov 2026
  29. 31 Oct 2026 · 18:22:15 UTC EPSS8.2%; scored 30 Oct 2026 → 8.2%; scored 31 Oct 2026
  30. 30 Oct 2026 · 18:02:45 UTC EPSS8.2%; scored 29 Oct 2026 → 8.2%; scored 30 Oct 2026
  31. 29 Oct 2026 · 20:19:26 UTC Public detection templateNo Nuclei template listed
  32. 29 Oct 2026 · 20:19:26 UTC Customer actionRequired: apply the update → Required: follow the MSRC remediation guidance
  33. 29 Oct 2026 · 20:19:26 UTC Publicly disclosedNo → No (MSRC assessment)
  34. 29 Oct 2026 · 20:19:26 UTC Exploitation detectedNot reported by MSRC → No known exploitation (MSRC assessment)
  35. 29 Oct 2026 · 18:33:30 UTC EPSS8.2%; scored 28 Oct 2026 → 8.2%; scored 29 Oct 2026
  36. 28 Oct 2026 · 20:00:33 UTC EPSS8.2%; scored 27 Oct 2026 → 8.2%; scored 28 Oct 2026
  37. 27 Oct 2026 · 15:48:13 UTC EPSS8.2%; scored 26 Oct 2026 → 8.2%; scored 27 Oct 2026
  38. 26 Oct 2026 · 23:57:09 UTC EPSS8.2%; scored 25 Oct 2026 → 8.2%; scored 26 Oct 2026
  39. 25 Oct 2026 · 17:12:51 UTC EPSS2.1%; scored 24 Oct 2026 → 8.2%; scored 25 Oct 2026
  40. 25 Oct 2026 · 01:34:18 UTC EPSS2.1%; scored 23 Oct 2026 → 2.1%; scored 24 Oct 2026
  41. 23 Oct 2026 · 15:51:28 UTC EPSS2.1%; scored 22 Oct 2026 → 2.1%; scored 23 Oct 2026
  42. 23 Oct 2026 · 09:33:49 UTC Public exploit codeUnknown: exploit-code evidence is incomplete or retained → No Nuclei template listed
  43. 23 Oct 2026 · 09:33:49 UTC Source coverage: public-exploit-codeIncomplete → Current
  44. 23 Oct 2026 · 09:33:49 UTC Source coverage: first-epssIncomplete → Current
  45. 23 Oct 2026 · 09:33:49 UTC Source coverage: cisa-kevIncomplete → Current
  46. 23 Oct 2026 · 09:33:49 UTC Source coverage: msrc-cvrfIncomplete → Current
  47. 23 Oct 2026 · 08:31:50 UTC Public exploit codeNo Nuclei template listed → Unknown: exploit-code evidence is incomplete or retained
  48. 23 Oct 2026 · 08:31:50 UTC Source coverage: public-exploit-codeCurrent → Incomplete
  49. 23 Oct 2026 · 08:31:50 UTC Source coverage: first-epssCurrent → Incomplete
  50. 23 Oct 2026 · 08:31:50 UTC Source coverage: cisa-kevCurrent → Incomplete
  51. 23 Oct 2026 · 08:31:50 UTC Source coverage: msrc-cvrfCurrent → Incomplete
  52. 22 Oct 2026 · 17:33:15 UTC EPSS2.1%; scored 21 Oct 2026 → 2.1%; scored 22 Oct 2026
  53. 21 Oct 2026 · 21:47:24 UTC EPSS2.1%; scored 20 Oct 2026 → 2.1%; scored 21 Oct 2026
  54. 20 Oct 2026 · 20:53:31 UTC EPSS2.1%; scored 19 Oct 2026 → 2.1%; scored 20 Oct 2026
  55. 19 Oct 2026 · 15:12:40 UTC EPSS2.1%; scored 18 Oct 2026 → 2.1%; scored 19 Oct 2026
  56. 18 Oct 2026 · 14:54:30 UTC EPSS2.1%; scored 16 Oct 2026 → 2.1%; scored 18 Oct 2026
  57. 18 Oct 2026 · 14:54:30 UTC Link: August 2026/security?release=2026-Aug#cves
  58. 16 Oct 2026 · 16:13:25 UTC EPSS2.1%; scored 15 Oct 2026 → 2.1%; scored 16 Oct 2026
  59. 15 Oct 2026 · 21:30:54 UTC EPSS2.1%; scored 14 Oct 2026 → 2.1%; scored 15 Oct 2026
  60. 15 Oct 2026 · 01:07:54 UTC EPSS2.1%; scored 13 Oct 2026 → 2.1%; scored 14 Oct 2026
  61. 14 Oct 2026 · 11:22:42 UTC Source coverage: msrc-cvrfIncomplete → Current

Explore global source statements, affected packages and advisory history for CVE-2026-65660. The catalog has a separate collection scope from Microsoft release records.

More advisories, affected versions and source history

cve-program · CVE-2026-65660

Published

Microsoft SharePoint Enterprise Server 2016

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Microsoft",
                    "product": "Microsoft SharePoint Enterprise Server 2016",
                    "platforms": [
                        "x64-based Systems"
                    ],
                    "versions": [
                        {
                            "version": "16.0.0",
                            "lessThan": "16.0.5565.1001",
                            "versionType": "custom",
                            "status": "affected"
                        }
                    ]
                }

Microsoft SharePoint Server 2019

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Microsoft",
                    "product": "Microsoft SharePoint Server 2019",
                    "platforms": [
                        "x64-based Systems"
                    ],
                    "versions": [
                        {
                            "version": "16.0.0",
                            "lessThan": "16.0.10417.20198",
                            "versionType": "custom",
                            "status": "affected"
                        }
                    ]
                }

Microsoft SharePoint Server Subscription Edition

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Microsoft",
                    "product": "Microsoft SharePoint Server Subscription Edition",
                    "platforms": [
                        "x64-based Systems"
                    ],
                    "versions": [
                        {
                            "version": "16.0.0",
                            "lessThan": "16.0.19725.20522",
                            "versionType": "custom",
                            "status": "affected"
                        }
                    ]
                }

Original source record · Cite this exact observation · Complete original publisher JSON

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Sources read 13 Nov 16:22 UTC · 274 of 275 readable · 273 fully read · documentation 469/469 current

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