Microsoft Windows: Elevation of privilege in Mobile Device Management
Summary
A heap-based buffer overflow in the Windows Mobile Device Management component allows an unauthorized attacker to elevate privileges. According to the description the attack can be carried out over the network. The CVSS vector requires high attack complexity and user interaction, so the conditions for exploitation are restrictive.
Affected
- Windows 10 Version 1607 (before 10.0.14393.9688)
- Windows 10 Version 1809 (before 10.0.17763.9487)
- Windows 10 Version 21H2 (before 10.0.19044.7846)
- Windows 10 Version 22H2 (before 10.0.19045.7846)
- Windows 11 Version 23H2 (before 10.0.22631.7711)
- Windows 11 Version 24H2 (before 10.0.26100.9974)
- Windows 11 Version 25H2 (before 10.0.26200.9974)
- Windows 11 Version 26H1 (before 10.0.28000.3501)
- Windows 11 Version 26H2 (before 10.0.26300.9974)
- Windows Server 2016 (before 10.0.14393.9688)
- Windows Server 2019 (before 10.0.17763.9487)
- Windows Server 2022 (before 10.0.20348.5870)
Fixed in
- Fixed in the November 2026 security update, at the builds listed above or later.
- KB numbers: Unknown. Check the MSRC advisory for the KB per product.
Workaround
Unknown.
Exploitation
- No public exploit code or proof of concept known.
- CISA SSVC assessment: exploitation none, not automatable, total technical impact.
- Not listed as actively exploited at the time of analysis.
Our recommendation
- Apply the November 2026 cumulative update to all affected Windows 10 and Windows Server systems within the normal patch window.
- Check the inventory for Windows 10 1607, 1809, 21H2 and 22H2 and for Server 2016 and 2019.
- Check whether any MDM or device enrollment endpoint is reachable from the internet and restrict access if not required.
- Monitor CISA KEV and the MSRC page for changes to the exploitation status.
Information from Microsoft (Patch Tuesday November 2026)
- Severity (Microsoft)
- Important
- Impact
- Elevation of privilege – Windows Mobile Device Management
- 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, KB5132061
Public exploits
PoC-in-GitHub, Metasploit and Exploit-DB list nothing for this CVE.
Research sources
- Microsoft Security Response Center: CVE-2026-119944 msrc.microsoft.com
- CVE.org CVE Record CVE-2026-119944 www.cve.org
- Strix: CVE-2026-119944 www.strix.ai
- Tenable: Microsoft November 2026 Patch Tuesday www.tenable.com
- Qualys: Microsoft Patch Tuesday November 2026 blog.qualys.com
- Zero Day Initiative: November 2026 Security Update Review www.zerodayinitiative.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, 05:27.
Original description (NVD)
Heap-based buffer overflow in Windows Mobile Device Management allows an unauthorized attacker to elevate privileges 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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