Vulnerability in Microsoft Powershell
CVE-2025-49734
Improper restriction of communication channel to intended endpoints in Windows PowerShell allows an authorized attacker to elevate privileges locally.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.0 (High). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.003 (24.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 25th percentile — 24.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: +0.000
Affected products
- Microsoft Powershell
- Microsoft Powershell 7.4 — versions 7.4.0
- Microsoft Powershell 7.5 — versions 7.5.0
- Microsoft Windows 10 1607
- Microsoft Windows 10 1809
- Microsoft Windows 10 21h2
- Microsoft Windows 10 22h2
- Microsoft Windows 10 Version 1607 — versions 10.0.14393.0
- Microsoft Windows 10 Version 1809 — versions 10.0.17763.0
- Microsoft Windows 10 Version 21h2 — versions 10.0.19044.0
Weakness classification (CWE)
References
- msrc.microsoft.com/update-guide/vulnerability/CVE-2025-49734 (vendor-advisory, patch, Vendor Advisory)
Frequently asked questions
- What is CVE-2025-49734?
- CVE-2025-49734 is a high-severity vulnerability in Microsoft Powershell, classified under CWE-923. CVSS score: 7.0/10. Published 2025-09-09.
- How severe is CVE-2025-49734?
- High severity. CVSS v3 base score is 7.0 out of 10.