An elevation of privilege vulnerability exists when reparse points are created by sandboxed processes allowing sandbox escape.
CVE-2026-100223
An elevation of privilege vulnerability exists when reparse points are created by sandboxed processes allowing sandbox escape. An attacker who successfully exploited the vulnerability could use the sandbox escape to elevate privileges on an affected system. To exploit the vulnerability, an attacker would first have to log on to the system, and then run a specially crafted application to take control over the affected system. The security update addresses the vulnerability by preventing sandboxed processes from creating reparse points targeting inaccessible files.
Assessment
- CVSS
- 7.8 (v3.1)
- Severity
- High
- EPSS
- 0.32% chance of exploitation in the next 30 days
- Known exploited
- Not listed in CISA KEV
- Exploit availability
- Nothing found in Exploit-DB, Metasploit, Nuclei or public PoC repositories
- Published
- 10 November 2026
- Last updated
- 12 November 2026
- Affected
- Microsoft · Windows 10 Version 1607 · Windows 10 Version 1809 · Windows 10 Version 21H2 · Windows 10 Version 22H2
- Assigner
- microsoft
CVSS vectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
At the source
References
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