CVE-2026-59119: PowerShell Elevation of Privilege Vulnerability

highCVSS 7.3CVE-2026-59119

Incorrect default permissions in Microsoft PowerShell allows an authorized attacker to elevate privileges locally.

CSIRTS triage

vendor: Microsoft product: PowerShell Privilege escalationMisconfiguration

What: Incorrect default permissions in PowerShell allow privilege elevation.
Who is affected: Authorized attackers with local access to systems running PowerShell.
Urgency: High severity (CVSS 7.3) with default configuration impact; prompt patching needed.
Action: Apply the latest PowerShell update addressing CVE-2026-59119 and review default permissions.

AI-assisted analysis generated from the source advisory — verify against the original.

⚡ Watch PowerShell

Get an email when a new PowerShell advisory drops — max one per day, one-click unsubscribe.

Details

Source: Microsoft Security Response Center (INTL · vendor-psirt · site)
Severity: high — CVSS 7.3
Published: 2026-08-11
Exploitation: Not in CISA KEV at last sync

Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-59119

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Low exploitation riskCVE-2026-591190.36% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 30% of all EPSS-scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2026-59119	coverage & exploitation status	NVD · CVE.org

Same CVEs, other sources

How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.

Recent advisories for PowerShell Elevation of

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

highCVE-2026-59119: Incorrect default permissions in Microsoft PowerShell allows an authorized attacker to elevate…nvd · 2026-08-11