#vulnerability

ServiceNow has disclosed details of a now-patched critical security flaw impacting its ServiceNow AI Platform that could enable an unauthenticated user to impersonate another user and perform arbitrary actions as that user. The vulnerability, tracked as CVE-2025-12420, carries a CVSS score of 9.3 out of 10.0 "This issue [...] could enable an unauthenticated user to impersonate another user and

**According to the CVSS metric, successful exploitation could lead to a scope change (S:C). What does this mean for this vulnerability?** In this case, a successful attack could be performed from a low privilege AppContainer. The attacker could elevate their privileges and execute code or access resources at a higher integrity level than that of the AppContainer execution environment.

Use after free in Windows Management Services allows an authorized attacker to elevate privileges locally.

Access of resource using incompatible type ('type confusion') in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.

Use after free in Windows Kernel-Mode Drivers allows an authorized attacker to elevate privileges locally.

Use after free in Windows Management Services allows an authorized attacker to elevate privileges locally.

Untrusted pointer dereference in Windows Cloud Files Mini Filter Driver allows an authorized attacker to elevate privileges locally.

Improper input validation in Windows Server Update Service allows an unauthorized attacker to execute code over a network.

Incorrect privilege assignment in Windows Hello allows an unauthorized attacker to perform tampering locally.

**What privileges could be gained by an attacker who successfully exploited this vulnerability?** An attacker who successfully exploited this vulnerability could gain Virtual Trust Level 2 (VTL2) privileges.