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TI-2026-35146 Aliases CVE-2026-47635GHSA-qx8j-c4w9-7qr2

Microsoft Outlook and Word Remote Code Execution Vulnerability

Priority LOW 38CWE-122Published · Updated

Key facts

Attack vector
Local
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from Microsoft.

Summary

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

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00333 26th percentileScored 2026-11-07
Fix Fixed Microsoft Office LTSC 2024 (Microsoft): https://aka.ms/OfficeSecurityReleases

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
MicrosoftMicrosoft Office LTSC 202416.0.0 to before https://aka.ms/OfficeSecurityReleaseshttps://aka.ms/OfficeSecurityReleasesPatch availableCNA
  • Microsoft Office LTSC 2024 VendorMicrosoft Affected 16.0.0 to before https://aka.ms/OfficeSecurityReleases Fixed in https://aka.ms/OfficeSecurityReleases Patch available CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:a:microsoft:office_2024:-:*:*:*:ltsc:-:x64:*not specified by NVDVulnerableMicrosoft
cpe:2.3:a:microsoft:office_2024:-:*:*:*:ltsc:-:x86:*not specified by NVDVulnerableMicrosoft
  • cpe:2.3:a:microsoft:office_2024:-:*:*:*:ltsc:-:x64:* Versions not specified by NVD Vulnerable ·Microsoft
  • cpe:2.3:a:microsoft:office_2024:-:*:*:*:ltsc:-:x86:* Versions not specified by NVD Vulnerable ·Microsoft

Remediation

  • Fix · CNA Microsoft Office LTSC 2024 (Microsoft) Fixed in https://aka.ms/OfficeSecurityReleases

Vendor assessments

Microsoft

Microsoft's page for this CVE →

Impact
Remote Code Execution
Exploited
No
Publicly disclosed
No
Exploitability
Exploitation Less Likely
ProductStatusPlan or fix
Microsoft Office LTSC 2024 for 32-bit editionsFixed https · //aka.ms/OfficeSecurityReleases
Microsoft Office LTSC 2024 for 64-bit editionsFixed https · //aka.ms/OfficeSecurityReleases

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-47635
  2. 2026-10-03 Alias added: GHSA-qx8j-c4w9-7qr2

References

Patch 1

  • TI-2026-72350 Heap overflow in Microsoft Office Outlook lets attackers run code CVSS 3.1CRITICAL 9.8
  • TI-2026-72305 Heap overflow in Microsoft Office Outlook allows remote code execution CVSS 3.1CRITICAL 9.8
  • TI-2026-73162 Double free in Microsoft Office Outlook allows remote code execution CVSS 3.1CRITICAL 9.8
  • TI-2026-73149 Heap overflow in Microsoft Outlook allows remote code execution CVSS 3.1CRITICAL 9.8
  • TI-2026-72959 Use after free in Microsoft PowerPoint allows remote code execution CVSS 3.1CRITICAL 9.8
  • TI-2026-72940 Stack overflow in Microsoft Office Outlook allows code execution CVSS 3.1CRITICAL 9.8
See all 464 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences