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TI-2026-42187 Aliases CVE-2026-58612GHSA-79hg-q5v7-878p

PowerShell Information Disclosure Vulnerability

Priority LOW 34CWE-918Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Information disclosure
Confidentiality · integrity · availability
High · None · None
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from Microsoft.

Summary

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

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00874 59th percentileScored 2026-11-07
Fix Fixed PowerShell 7.4 (Microsoft): 7.4.19.0PowerShell 7.5 (Microsoft): 7.5.10.0+1 more product

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
MicrosoftPowerShell 7.47.4.0 to before 7.4.19.07.4.19.0Patch availableCNA
MicrosoftPowerShell 7.57.5.0 to before 7.5.10.07.5.10.0Patch availableCNA
MicrosoftPowerShell 7.67.6.0 to before 7.6.57.6.5Patch availableCNA
  • PowerShell 7.4 VendorMicrosoft Affected 7.4.0 to before 7.4.19.0 Fixed in 7.4.19.0 Patch available CNA
  • PowerShell 7.5 VendorMicrosoft Affected 7.5.0 to before 7.5.10.0 Fixed in 7.5.10.0 Patch available CNA
  • PowerShell 7.6 VendorMicrosoft Affected 7.6.0 to before 7.6.5 Fixed in 7.6.5 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:microsoft:powershell:*:*:*:*:*:*:*:*7.4 to before 7.4.19.0; 7.5 to before 7.5.10.0; 7.6 to before 7.6.5VulnerableMicrosoft
  • cpe:2.3:a:microsoft:powershell:*:*:*:*:*:*:*:* Versions 7.4 to before 7.4.19.0; 7.5 to before 7.5.10.0; 7.6 to before 7.6.5 Vulnerable ·Microsoft

Remediation

  • Fix · CNA PowerShell 7.4 (Microsoft) Fixed in 7.4.19.0
  • Fix · CNA PowerShell 7.5 (Microsoft) Fixed in 7.5.10.0
  • Fix · CNA PowerShell 7.6 (Microsoft) Fixed in 7.6.5

Vendor assessments

Microsoft

Microsoft's page for this CVE →

Impact
Information Disclosure
Exploited
No
Publicly disclosed
No
Exploitability
Exploitation Less Likely
ProductStatusPlan or fix
PowerShell 7.4Fixed7.4.19.0 Security Update
PowerShell 7.5Fixed7.5.10.0 Security Update
PowerShell 7.6Fixed7.6.5 Security Update

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-58612
  2. 2026-10-03 Alias added: GHSA-79hg-q5v7-878p

References

  • TI-2024-14152 .NET and Visual Studio Denial of Service Vulnerability CVSS 3.1HIGH 7.5
  • TI-2022-19606 PowerShell Remote Code Execution Vulnerability CVSS 3.1HIGH 8.5
  • TI-2018-06024 A remote code execution vulnerability exists in PowerShell Editor Services, aka… CVSS 3.1CRITICAL 9.8
  • TI-2024-00056 NET, .NET Framework, and Visual Studio Security Feature Bypass Vulnerability CVSS 3.1CRITICAL 9.8
  • TI-2022-07392 .NET and Visual Studio Denial of Service Vulnerability CVSS 3.1HIGH 7.5
  • TI-2024-17279 Microsoft QUIC Denial of Service Vulnerability CVSS 3.1HIGH 7.5
See all 31 →

Sources