Microsoft Windows: Remote code execution in Storage Spaces Controller
Summary
An untrusted pointer dereference in the Windows Storage Spaces Controller allows an unauthorized attacker to execute code over a network, according to the CVE record. The CVSS 3.1 vector (8.8) requires user interaction and assumes full impact on confidentiality, integrity and availability. No workaround, public exploit or in-the-wild exploitation has been found, but the exact preconditions are not confirmed in the sources and should be verified on MSRC.
Affected
- Windows 11 version 23H2: 10.0.22631.0 before 10.0.22631.7711
- Windows 11 version 24H2: 10.0.26100.0 before 10.0.26100.9974
- Windows 11 version 25H2: 10.0.26200.0 before 10.0.26200.9974
- Windows 11 version 26H1: 10.0.28000.0 before 10.0.28000.3501
- Windows 11 version 26H2: 10.0.26300.0 before 10.0.26300.9974
- Windows Server 2025 (incl. Server Core): 10.0.26100.0 before 10.0.26100.33822 (listed in the CNA record extract, not confirmed by the secondary research notes)
Fixed in
- Fixed builds are the 'before' values listed under affected.
- KB numbers: Unknown. Check the MSRC Security Update Guide.
Workaround
Unknown. No vendor workaround found.
Exploitation
- No public exploit or proof of concept found.
- No evidence of exploitation in the wild; the aggregator Strix lists KEV: No (not a CISA source).
- CVSS exploit maturity is E:U (unproven).
Our recommendation
- Patch affected Windows 11 and Windows Server systems in the next maintenance window, starting with hosts that use Storage Spaces or are reachable through shared network storage.
- Confirm the exact preconditions, Server coverage and KB numbers on MSRC before closing the item, as the sources differ.
- Monitor for public exploit code or a CISA KEV listing.
Information from Microsoft (Patch Tuesday November 2026)
- Severity (Microsoft)
- Important
- Impact
- Remote code execution – Windows Storage Spaces Controller
- Status on Patch Tuesday
- Neither exploited nor publicly disclosed
- Exploitability assessment
- Exploitation less likely
- Product family
- Windows
- Updates (KB)
- KB5131087, KB5132061, KB5132043, KB5131080, KB5131077, KB5132059
Public exploits
PoC-in-GitHub, Metasploit and Exploit-DB list nothing for this CVE.
Research sources
- CVE Record (CNA: Microsoft) www.cve.org
- MSRC Security Update Guide msrc.microsoft.com
- Strix aggregator entry www.strix.ai
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 10 Nov 2026, 21:17.
Original description (NVD)
Untrusted pointer dereference in Windows Storage Spaces Controller allows an unauthorized attacker to execute code over a network.
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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