CVE-2026-47830 PUBLISHED

Incorrect Permission Assignment Allows Local Privilege Escalation to SYSTEM via Executable Overwrite

Assigner: vmware
Reserved: 20.05.2026 Published: 09.07.2026 Updated: 09.07.2026

Incorrect Permission Assignment in BOSH.Utils.psm1 in BOSH-Ecosystem bosh-windows-stemcell-builder allows low-privilege authenticated users to overwrite C:\bosh\service_wrapper.exe or C:\bosh\bosh-agent.exe and gain NT AUTHORITY\SYSTEM on the next service restart or reboot. This can lead to full host control. Affected versions: bosh-windows-stemcell-builder versions prior to v2019.98.

Metrics

CVSS 4.0

CVSS Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CVSS Score: 8.5

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Local	Confidentiality	High	Confidentiality	None
Attack Complexity	Low	Integrity	High	Integrity	None
Attack Requirements	None	Availability	High	Availability	None
Privileges Required	Low
User Interaction	None

CVSS 4.0

Product Status

Vendor	Cloud Foundry Foundation
Product	bosh-windows-stemcell-builder
Versions	Default: unaffected affected from 0 to 2019.98 (excl.)

References

https://www.cloudfoundry.org/blog/cve-2026-47830-incorrect-permission-assignment-allows-local-privilege-escalation-to-system-via-executable-overwrite/

Problem Types

CWE-732 Incorrect Permission Assignment for Critical Resource CWE

Impacts

Local privilege escalation to NT AUTHORITY\SYSTEM via executable overwrite, leading to full host control.