CyStack@CyStackSecurity
Disclosure
CVE-2026-59119: Privilege escalation flaw in Microsoft PowerShell, the command-line tool installed by default on most Windows systems. Overly broad default permissions on an internal operation. An attacker with a local foothold, even at low privilege, exploits it to gain SYSTEM. Patched in v7.4.19, v7.5.10, v7.6.5. Found by a CyStack researcher. Details at https://cystack.net/disclosures #CyStack #CyberSecurity #Vulnerability #Microsoft #PowerShell #PrivilegeEscalation #InfoSec
Post summary
The post discloses a local privilege escalation issue in Microsoft PowerShell, lists patches for affected versions, and provides a link to additional details, but does not confirm active exploitation or provide a PoC.
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