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TI-2026-73385 Aliases CVE-2026-105732GHSA-wc3c-vh4p-m382

Sysinternals Suite stack overflow lets local users escalate privileges

Priority LOW 34CWE-121Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
Required
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 CWE-121 and the CVSS impact.

Summary

Microsoft Sysinternals Suite from 3.0.0 before 1.03 contains a stack-based buffer overflow (CWE-121) that lets an authorized local attacker with low privileges escalate privileges. Exploitation requires user interaction.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Description from the CNA

Stack-based buffer overflow in SysInternals allows an authorized attacker to elevate privileges locally.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00463 40th percentileScored 2026-11-07
Fix Fixed Sysinternals Suite (Microsoft): 1.03

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
MicrosoftSysinternals Suite3.0.0 to before 1.031.03Patch availableCNA
  • Sysinternals Suite VendorMicrosoft Affected 3.0.0 to before 1.03 Fixed in 1.03 Patch available CNA

Remediation

Update Microsoft Sysinternals Suite to version 1.03, the fixed version.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

  • Fix · CNA Sysinternals Suite (Microsoft) Fixed in 1.03

Timeline

  1. 2026-10-13 Threatist record created from CVE-2026-105732
  2. 2026-10-13 CISA SSVC decision points changed
  3. 2026-10-13 Priority changed: MEDIUM → LOW
  4. 2026-10-13 Alias added: GHSA-wc3c-vh4p-m382

References

Patch 1

  • TI-2026-42212 Microsoft SharePoint Remote Code Execution Vulnerability KEVCVSS 3.1CRITICAL 9.8
  • TI-2026-37256 Microsoft SharePoint Remote Code Execution Vulnerability KEVCVSS 3.1CRITICAL 9.8
  • TI-2026-26194 Windows Internet Key Exchange (IKE) Service Extensions Remote Code Execution Vulnerability KEVCVSS 3.1CRITICAL 9.8
  • TI-2026-16982 Microsoft SharePoint Remote Code Execution Vulnerability KEVCVSS 3.1CRITICAL 9.8
  • TI-2025-36863 Windows Server Update Service (WSUS) Remote Code Execution Vulnerability KEVCVSS 3.1CRITICAL 9.8
  • TI-2025-33671 Microsoft SharePoint Server Remote Code Execution Vulnerability KEVCVSS 3.1CRITICAL 9.8
See all 18045 →

Sources

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