Microsoft Windows PowerShell: Code injection (CWE-94) allows code execution
Summary
Windows PowerShell contains a code injection flaw (CWE-94) that allows code to be executed on the system. According to the CVE record, an unauthorized attacker with local access and no privileges can exploit it, but user interaction is required (CVSS 3.1: 7.8). The record's title says Remote Code Execution, which conflicts with its description, so remote reachability is unconfirmed until Microsoft clarifies.
Affected
- Windows 10 Version 1607, 1809, 21H2 and 22H2
- Windows 11 Version 23H2, 24H2, 25H2 and 26H1 (26H2 per the CVE record)
- Windows Server 2016, 2019 and 2022 (including Server Core installations)
- Version ranges are taken from the CVE record and secondary trackers, which conflict in places. Verify on MSRC.
Fixed in
Unknown. No vendor text naming the fixing update (KB) was retrieved. Secondary sources cite builds such as 10.0.19044.7846, 10.0.26100.9968 and 10.0.20348.5870. Confirm the fixed build per SKU on MSRC.
Workaround
Unknown. No workaround or mitigation was found for this CVE.
Exploitation
- Senserva marks the CVE as not exploited.
- No CISA KEV listing, public proof of concept or vendor statement of in-the-wild exploitation was found.
- CISA SSVC: Exploitation none, Automatable no, Technical Impact total.
- The EPSS score is not available.
Our recommendation
- Check which Windows builds you run and whether they are still supported, especially Windows 10 devices.
- Install the November 2026 Windows updates on affected systems, starting with Windows 10 endpoints and shared administrator workstations.
- Limit local privileges and use application control to reduce the impact of malicious scripts or files.
- Recheck the MSRC page and CISA KEV after patching, because the status may change.
Information from Microsoft (Patch Tuesday November 2026)
- Severity (Microsoft)
- Important
- Impact
- Remote code execution – Windows PowerShell
- Status on Patch Tuesday
- Neither exploited nor publicly disclosed
- Exploitability assessment
- Exploitation less likely
- Product family
- Windows, Windows ESU (Extended Security Updates)
- Updates (KB)
- KB5131291, KB5131085, KB5131096, KB5131090, KB5131087, KB5135385
Public exploits
PoC-in-GitHub, Metasploit and Exploit-DB list nothing for this CVE.
Research sources
- MSRC Security Update Guide (CVE-2026-124225) msrc.microsoft.com
- CVE Record CVE-2026-124225 www.cve.org
- Strix CVE-2026-124225 www.strix.ai
- Senserva KB 5132059 senserva.com
- Rescana Patch Tuesday November 2026 www.rescana.com
- NewsBeep Patch Tuesday roundup www.newsbeep.com
Researched and written up in English and German by an AI (Claude by Anthropic) based on NVD, CISA, EPSS and the sources listed. The vendor information is authoritative. Researched on 11 Nov 2026, 03:25.
Original description (NVD)
Improper control of generation of code ('code injection') in Windows PowerShell allows an unauthorized attacker to execute code locally.
NVD references (1)
Sources
The tracker combines official, freely usable data sources – updated continuously:
- NVD (NIST) – CVEs, rating (CVSS), affected products
- CISA KEV – vulnerabilities confirmed by CISA as actively exploited
- CISA Vulnrichment – CISA assessment (SSVC) in the official CVE record
- FIRST EPSS – probability of exploitation
- Microsoft MSRC – Patch Tuesday: vulnerabilities, severity, updates
- PoC-in-GitHub – public proof-of-concept repositories
- Metasploit (Rapid7) – modules of the Metasploit Framework
- Exploit-DB (OffSec) – archive of public exploits (links only)
- Patch days: official vendor pages (linked per vendor) (Vendor patch days)
This product uses data from the NVD API but is not endorsed or certified by the NVD. EPSS data © FIRST.org.
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