CVE-2026-50523: Microsoft PowerShell Remote Code Execution Vulnerability
Improper neutralization of special elements used in a command ('command injection') in Microsoft PowerShell allows an authorized attacker to execute code locally.
CSIRTS triage
- What
- Improper neutralization of special elements in command input allows command injection leading to remote code execution.
- Who is affected
- Authorized users of Microsoft PowerShell who can supply crafted input to vulnerable commands.
- Urgency
- High; CVSS 7.8 and command injection allows code execution; remediate as soon as feasible.
- Action
- Apply the security update for CVE-2026-50523 from Microsoft.
AI-assisted analysis generated from the source advisory — verify against the original.
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Details
Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50523
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-2026-505230.53% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 43% of all EPSS-scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2026-50523 | coverage & exploitation status | NVD · CVE.org |
Same CVEs, other sources
How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.
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