Privilege escalation in Windows Sysinternals Process Monitor
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-822 and the CVSS impact.
Summary
Microsoft Windows Sysinternals Process Monitor from 1.0 before v4.04 is affected. An untrusted pointer dereference (CWE-822) lets the program use a pointer without validating it first. A local attacker with low privileges can gain higher privileges on the system.
Written with Claude Haiku 5.5 from the sources below · 2026-10-28
Description from the CNA
Untrusted pointer dereference in SysInternals allows an authorized attacker to elevate privileges locally.
Why it matters now
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
Remediation
Upgrade Windows Sysinternals Process Monitor to the fixed version v4.04.
Written with Claude Haiku 5.5 from the sources below · 2026-10-28
- Fix · CNA Windows Sysinternals Process Monitor (Microsoft) Fixed in v4.04
Timeline
- 2026-10-13 Threatist record created from CVE-2026-100205
- 2026-10-13 Alias added: GHSA-94vp-mf9v-f78j
- 2026-10-14 CISA SSVC decision points changed
- 2026-10-14 Priority changed: MEDIUM → LOW
References
More Microsoft vulnerabilities
- 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
Sources
- CVE-2026-100205 · CVE Program
- CVE-2026-100205 · NVD
- FIRST EPSS
- GHSA-94vp-mf9v-f78j · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences