Improper neutralization of special elements used in an os command ('os command injection') in Windows Sandbox allows an authorized attacker to elevate privileges locally.
Severity
Important
CVSS base score
Not published
Impact
Elevation of Privilege
Exploitation detected
No known exploitation (MSRC assessment)
Exploitability
Exploitation Less Likely
Publicly disclosed
No (MSRC assessment)
EPSS · 30-day forecast
No EPSS score collected
Customer action
Required: follow the MSRC remediation guidance
More details
Public detection template
No Nuclei template is listed in the current collected catalog
Component
Windows Sandbox
Weakness
CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
CISA KEV is observed exploitation evidence. FIRST EPSS is a dated prediction of exploitation in the next 30 days. Missing scores are unknown. This collector requests predictions only for explicit CVE aliases in the public NuGet archive; Microsoft release views retain their existing prediction scope.
No collected risk observation for these identifiers. This does not establish absence of exploitation or a zero probability.
cve-program · CVE-2026-119906
Published
Windows Sandbox Elevation of Privilege Vulnerability
Improper neutralization of special elements used in an os command ('os command injection') in Windows Sandbox allows an authorized attacker to elevate privileges locally.
This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: cve-program · CVE Program Terms of Use. Source text is retained; field grouping and change labels are provided by ChangeIntel.