CVE-2022-24505

This is a Windows ALPC elevation-of-privilege vulnerability, and the vector describes it as a race condition (CWE-362) exploited locally, requiring low privileges, no user interaction, and with high attack complexity. Advanced Local Procedure Call is a core inter-process mechanism; winning the race lets an already-present low-privileged process escalate to SYSTEM. Microsoft's terse title aside, this is a local escalation, not a remote entry point.

Race-condition LPEs are inherently probabilistic — the high attack complexity reflects the need to hit a narrow timing window, often across many attempts — but skilled operators and ready-made tooling routinely make that reliable enough for real use. As with any local EoP, its role in an attack is the second stage: an intruder who already has a foothold uses it to reach SYSTEM, disable protections, and move laterally. It gets you higher, never in, which appropriately keeps it at high rather than critical.

We treat this as routine Patch Tuesday coverage weighted toward post-foothold risk. Because it only matters once an attacker is already executing code locally, we rank it as a chaining/defense-in-depth item — deploy broadly on the normal Windows cadence, with priority on endpoints most exposed to initial access and on multi-tenant or shared machines where a low-privileged user turning to SYSTEM is most damaging. It's a finisher move, and we prioritize it as one.