EXPOSURES › CVE-2016-3309
CVE-2016-3309
CRITICAL ⌖ ON CISA KEV · EXPLOITEDA Microsoft Windows kernel vulnerability allowed attackers to escalate privileges and execute arbitrary code, actively exploited in ransomware campaigns and impacting DIB organizations using Windows systems.
CVE-2016-3309 represents a critical kernel-level privilege escalation vulnerability where improper memory object handling enabled arbitrary code execution. DIB organizations relying on Windows must ensure timely patching to prevent attackers from gaining elevated system access, potentially leading to data breaches and compliance failures under NIST 800-171. Verify patch deployment and consider compensating controls if patching is not immediately feasible.
Shame score — The vulnerability's exploitation in ransomware campaigns highlights a significant failure in Microsoft's security posture and a lack of proactive patching by affected DIB organizations.
▸ RECOMMENDED ACTION Actively exploited (CISA KEV) — remediate now, ahead of your normal patch cycle.
A privilege escalation vulnerability exists when the Windows kernel fails to properly handle objects in memory. An attacker who successfully exploited this vulnerability could run arbitrary code in kernel mode.
| PRODUCT | STATUS |
|---|---|
| Azure Commercial Cloud Microsoft |
Authorized |
| Azure Government (includes Dynamics 365) Microsoft |
Authorized |
| Microsoft Office 365 GCC High Microsoft |
In Process |
| Office 365 Multi-Tenant & Supporting Services Microsoft |
Authorized |