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Microsoft PowerShell's High-Severity Flaw Allows a Network-Based Attacker to Gain Unauthorized Access on Affected Installations

Last refreshed2026-09-27

Status: UPDATED  |  Advisory ID: CVE-2026-58612

Key Details

CVECVE-2026-58612
CVSS Score / Version7.4 (High) / CVSS v3.1
Updated2026-09-20
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N
CVSS Proseattack vector is network; attack complexity is low; privileges required is none; user interaction is required; scope is changed; confidentiality impact is high; integrity impact is none; availability impact is none.
Affected productsMicrosoft PowerShell
Exploitation prediction (EPSS)0.87% probability of exploitation in the next 30 days (57% percentile) -- FIRST.org's EPSS model.

Affected Products, Subsystems & Sectors

VendorProductAffected VersionsPatch Status
MicrosoftPowerShell
SubsystemsGeneral OT
SectorsMultiple

What to Know

Server-side request forgery (ssrf) in Microsoft PowerShell Core allows an unauthorized attacker to disclose information over a network.

What to Do

Monitor Microsoft's web page for any future patch releases. See vendor advisory link below.

References

SourceReference
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2026-58612
CVEhttps://www.cve.org/CVERecord?id=CVE-2026-58612
Vendor advisoryhttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-58612