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CVE-2026-70125ImportantRCELocalRevised 30 Oct

Microsoft Office Outlook Remote Code Execution Vulnerability

MSRC advisory NVD CVE.org

Assessment

Heap-based buffer overflow in Microsoft Office Outlook allows an unauthorized attacker to execute code locally.

Severity
Important
CVSS base score
7.8
Impact
Remote Code Execution
Exploitation detected
No known exploitation (MSRC assessment)
Exploitability
Exploitation Less Likely
Publicly disclosed
No (MSRC assessment)
EPSS · 30-day forecast
0.3%FIRST forecast dated 10 Nov 2026, for the following 30 days · FIRST percentile 25.7% · about EPSS
Customer action
Required: follow the MSRC remediation guidance
More details
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
Public detection template
No Nuclei template is listed in the current collected catalog
Component
Microsoft Office Outlook
Weakness
CWE-122: Heap-based Buffer Overflow
Issued by
Microsoft
Published
23 Sep 2026 · September 2026
Last revised
30 Oct 2026Updated one or more CVSS scores for the affected products. This is an informational change only.
CVSS 3.1 base metricsRed raises the risk · green lowers it
Attack vector
LocalAV:L
Attack complexity
LowAC:L
Privileges required
NonePR:N
User interaction
RequiredUI:R
Scope
UnchangedS:U
Confidentiality
HighC:H
Integrity
HighI:H
Availability
HighA:H

Updates that fix it

0 KBs

No KB listed

No KB update is listed in the collected MSRC record. Check the MSRC advisory for product releases and other remedies.

Affected products

Microsoft Office
6 affected products

What changed

  1. Detection template: Unknown: detection-template evidence is incomplete or retained → No Nuclei template listed
  2. Detection template: No Nuclei template listed → Unknown: detection-template evidence is incomplete or retained
  3. Detection template: Unknown: detection-template evidence is incomplete or retained → No Nuclei template listed
  4. Detection template: No Nuclei template listed → Unknown: detection-template evidence is incomplete or retained
  5. Publisher revision note: CWE added. Informational change only. → Updated one or more CVSS scores for the affected products. This is an informational change only. · CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C → CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C · CVSS score: 8.8 → 7.8
  6. 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)
  7. Detection template: Unknown: exploit-code evidence is incomplete or retained → No Nuclei template listed · CISA KEV: Unknown: catalog evidence is incomplete or retained → Not listed in the collected catalog
  8. Detection template: No Nuclei template listed → Unknown: exploit-code evidence is incomplete or retained · CISA KEV: Not listed in the collected catalog → Unknown: catalog 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 (66)

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

  1. 10 Nov 2026 · 18:32:11 UTC EPSS0.3%; scored 9 Nov 2026 → 0.3%; scored 10 Nov 2026
  2. 9 Nov 2026 · 22:24:37 UTC EPSS0.3%; scored 8 Nov 2026 → 0.3%; scored 9 Nov 2026
  3. 8 Nov 2026 · 15:16:05 UTC EPSS0.3%; scored 7 Nov 2026 → 0.3%; scored 8 Nov 2026
  4. 7 Nov 2026 · 16:12:44 UTC EPSS0.3%; scored 6 Nov 2026 → 0.3%; scored 7 Nov 2026
  5. 6 Nov 2026 · 19:15:37 UTC EPSS0.3%; scored 5 Nov 2026 → 0.3%; scored 6 Nov 2026
  6. 6 Nov 2026 · 17:32:22 UTC Public detection templateUnknown: detection-template evidence is incomplete or retained → No Nuclei template listed
  7. 6 Nov 2026 · 17:32:22 UTC Source coverage: public-exploit-codeIncomplete → Current
  8. 6 Nov 2026 · 17:32:22 UTC Source coverage: first-epssIncomplete → Current
  9. 6 Nov 2026 · 17:32:22 UTC Source coverage: msrc-cvrfIncomplete → Current
  10. 6 Nov 2026 · 16:31:02 UTC Public detection templateNo Nuclei template listed → Unknown: detection-template evidence is incomplete or retained
  11. 6 Nov 2026 · 16:31:02 UTC Source coverage: public-exploit-codeCurrent → Incomplete
  12. 6 Nov 2026 · 16:31:02 UTC Source coverage: first-epssCurrent → Incomplete
  13. 6 Nov 2026 · 16:31:02 UTC Source coverage: msrc-cvrfCurrent → Incomplete
  14. 5 Nov 2026 · 23:42:03 UTC EPSS0.3%; scored 4 Nov 2026 → 0.3%; scored 5 Nov 2026
  15. 5 Nov 2026 · 02:36:20 UTC EPSS0.3%; scored 3 Nov 2026 → 0.3%; scored 4 Nov 2026
  16. 4 Nov 2026 · 03:04:37 UTC EPSS0.3%; scored 2 Nov 2026 → 0.3%; scored 3 Nov 2026
  17. 3 Nov 2026 · 01:53:36 UTC EPSS0.3%; scored 1 Nov 2026 → 0.3%; scored 2 Nov 2026
  18. 2 Nov 2026 · 17:30:39 UTC Public detection templateUnknown: detection-template evidence is incomplete or retained → No Nuclei template listed
  19. 2 Nov 2026 · 17:30:39 UTC Source coverage: public-exploit-codeIncomplete → Current
  20. 2 Nov 2026 · 17:30:39 UTC Source coverage: first-epssIncomplete → Current
  21. 2 Nov 2026 · 17:30:39 UTC Source coverage: msrc-cvrfIncomplete → Current
  22. 2 Nov 2026 · 16:27:39 UTC Public detection templateNo Nuclei template listed → Unknown: detection-template evidence is incomplete or retained
  23. 2 Nov 2026 · 16:27:39 UTC Source coverage: public-exploit-codeCurrent → Incomplete
  24. 2 Nov 2026 · 16:27:39 UTC Source coverage: first-epssCurrent → Incomplete
  25. 2 Nov 2026 · 16:27:39 UTC Source coverage: msrc-cvrfCurrent → Incomplete
  26. 2 Nov 2026 · 00:36:51 UTC EPSS0.3%; scored 31 Oct 2026 → 0.3%; scored 1 Nov 2026
  27. 31 Oct 2026 · 18:22:15 UTC EPSS0.4%; scored 30 Oct 2026 → 0.3%; scored 31 Oct 2026
  28. 30 Oct 2026 · 22:14:02 UTC Revision noteCWE added. Informational change only. → Updated one or more CVSS scores for the affected products. This is an informational change only.
  29. 30 Oct 2026 · 22:14:02 UTC Last revised30 Sep 2026 07:00 UTC → 30 Oct 2026 07:00 UTC
  30. 30 Oct 2026 · 22:14:02 UTC CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C → CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
  31. 30 Oct 2026 · 22:14:02 UTC CVSS base score8.8 → 7.8
  32. 30 Oct 2026 · 22:14:02 UTC SummaryMicrosoft Office Outlook Remote Code Execution Vulnerability → Heap-based buffer overflow in Microsoft Office Outlook allows an unauthorized attacker to execute code locally.
  33. 30 Oct 2026 · 18:02:45 UTC EPSS0.4%; scored 29 Oct 2026 → 0.4%; scored 30 Oct 2026
  34. 29 Oct 2026 · 20:19:26 UTC Public detection templateNo Nuclei template listed
  35. 29 Oct 2026 · 20:19:26 UTC Customer actionRequired: apply the update → Required: follow the MSRC remediation guidance
  36. 29 Oct 2026 · 20:19:26 UTC Publicly disclosedNo → No (MSRC assessment)
  37. 29 Oct 2026 · 20:19:26 UTC Exploitation detectedNot reported by MSRC → No known exploitation (MSRC assessment)
  38. 29 Oct 2026 · 18:33:30 UTC EPSS0.4%; scored 28 Oct 2026 → 0.4%; scored 29 Oct 2026
  39. 28 Oct 2026 · 20:00:33 UTC EPSS0.4%; scored 27 Oct 2026 → 0.4%; scored 28 Oct 2026
  40. 27 Oct 2026 · 15:48:13 UTC EPSS0.4%; scored 26 Oct 2026 → 0.4%; scored 27 Oct 2026
  41. 26 Oct 2026 · 23:57:09 UTC EPSS0.4%; scored 25 Oct 2026 → 0.4%; scored 26 Oct 2026
  42. 25 Oct 2026 · 17:12:51 UTC EPSS0.4%; scored 24 Oct 2026 → 0.4%; scored 25 Oct 2026
  43. 25 Oct 2026 · 01:34:18 UTC EPSS0.4%; scored 23 Oct 2026 → 0.4%; scored 24 Oct 2026
  44. 23 Oct 2026 · 15:51:28 UTC EPSS0.4%; scored 22 Oct 2026 → 0.4%; scored 23 Oct 2026
  45. 23 Oct 2026 · 09:33:49 UTC Public exploit codeUnknown: exploit-code evidence is incomplete or retained → No Nuclei template listed
  46. 23 Oct 2026 · 09:33:49 UTC CISA KEVUnknown: catalog evidence is incomplete or retained → Not listed in the collected catalog
  47. 23 Oct 2026 · 09:33:49 UTC Source coverage: public-exploit-codeIncomplete → Current
  48. 23 Oct 2026 · 09:33:49 UTC Source coverage: first-epssIncomplete → Current
  49. 23 Oct 2026 · 09:33:49 UTC Source coverage: cisa-kevIncomplete → Current
  50. 23 Oct 2026 · 09:33:49 UTC Source coverage: msrc-cvrfIncomplete → Current
  51. 23 Oct 2026 · 08:31:50 UTC Public exploit codeNo Nuclei template listed → Unknown: exploit-code evidence is incomplete or retained
  52. 23 Oct 2026 · 08:31:50 UTC CISA KEVNot listed in the collected catalog → Unknown: catalog evidence is incomplete or retained
  53. 23 Oct 2026 · 08:31:50 UTC Source coverage: public-exploit-codeCurrent → Incomplete
  54. 23 Oct 2026 · 08:31:50 UTC Source coverage: first-epssCurrent → Incomplete
  55. 23 Oct 2026 · 08:31:50 UTC Source coverage: cisa-kevCurrent → Incomplete
  56. 23 Oct 2026 · 08:31:50 UTC Source coverage: msrc-cvrfCurrent → Incomplete
  57. 22 Oct 2026 · 17:33:15 UTC EPSS0.4%; scored 21 Oct 2026 → 0.4%; scored 22 Oct 2026
  58. 21 Oct 2026 · 21:47:24 UTC EPSS0.4%; scored 20 Oct 2026 → 0.4%; scored 21 Oct 2026
  59. 20 Oct 2026 · 20:53:31 UTC EPSS0.4%; scored 19 Oct 2026 → 0.4%; scored 20 Oct 2026
  60. 19 Oct 2026 · 15:12:40 UTC EPSS0.4%; scored 18 Oct 2026 → 0.4%; scored 19 Oct 2026
  61. 18 Oct 2026 · 14:54:30 UTC EPSS0.4%; scored 16 Oct 2026 → 0.4%; scored 18 Oct 2026
  62. 18 Oct 2026 · 14:54:30 UTC Link: September 2026/security?release=2026-Sep#cves
  63. 16 Oct 2026 · 16:13:25 UTC EPSS0.4%; scored 15 Oct 2026 → 0.4%; scored 16 Oct 2026
  64. 15 Oct 2026 · 21:30:54 UTC EPSS0.4%; scored 14 Oct 2026 → 0.4%; scored 15 Oct 2026
  65. 15 Oct 2026 · 01:07:54 UTC EPSS0.4%; scored 13 Oct 2026 → 0.4%; scored 14 Oct 2026
  66. 14 Oct 2026 · 11:22:42 UTC Source coverage: msrc-cvrfIncomplete → Current

Explore global source statements, affected packages and advisory history for CVE-2026-70125. The catalog has a separate collection scope from Microsoft release records.

Explicit identifiers and source references

These records connect through source-stated identifiers. Shared identifiers or dates alone do not establish shared exposure, root cause or applicability.

CVE-2026-70125 · Microsoft / collected KEV context

cve-program · CVE-2026-70125

Related operational evidence

Explicit CVE identifiers
ChangeIntel

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Sources read 11 Nov 06:50 UTC · 275 of 275 readable · 273 fully read · documentation 464/469 current

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