ESET products for Windows allows untrusted process to impersonate the client of a pipe, which can be leveraged by attacker to escalate privileges in the context of NT AUTHORITY\SYSTEM.

References

• https://nvd.nist.gov/vuln/detail/CVE-2021-37852
• https://support.eset.com/en/ca8223-local-privilege-escalation-vulnerability-fixed-in-eset-products-for-windows
• https://www.zerodayinitiative.com/advisories/ZDI-22-148/