CVE-2026-83518: RPC Runtime Elevation of Privilege Vulnerability
Heap-based buffer overflow in RPC Runtime allows an authorized attacker to elevate privileges locally.
Other sources
RPC Runtime Elevation of Privilege Vulnerability
— Microsoft
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.26100.9445Patch KB5124008 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.28000.2954Patch KB5124012 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.22631.7582Patch KB5122880 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.26200.9445Patch KB5124008
Event History
Frequently Asked Questions
What level of access does an attacker need to exploit this issue?
The attacker must already be authorized on the affected system and be able to execute an attack locally. The available data does not indicate that remote exploitation or user interaction is required.
What could exploitation allow an attacker to do?
Successful exploitation could allow local elevation of privilege. The stated impact includes high confidentiality, integrity, and availability impact.