EXPOSURES › CVE-2019-1129
CVE-2019-1129
CRITICAL ⌖ ON CISA KEV · EXPLOITEDA Microsoft Windows vulnerability allowed attackers to escalate privileges, actively exploited and linked to ransomware campaigns.
CVE-2019-1129 in the Windows AppXSVC improperly handled hard links, enabling privilege escalation. DIB organizations using vulnerable Windows systems face increased risk of ransomware infection and potential compliance failures (NIST 800-171 controls 3.a, 3.b, 4.d). Patch systems promptly and verify remediation.
Shame score — The vulnerability's active exploitation by ransomware groups demonstrates a significant failure in Microsoft's security practices and highlights the potential for widespread compromise.
▸ RECOMMENDED ACTION Actively exploited (CISA KEV) — remediate now, ahead of your normal patch cycle.
A privilege escalation vulnerability exists when Windows AppXSVC improperly handles hard links. An attacker who successfully exploited this vulnerability could run processes in an elevated context.
| 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 |