Microsoft Windows: Elevation of privilege in Geotag Broker
Summary
A flaw in the Windows Geotag Broker component is caused by improper access control (CWE-862). An authorized local attacker with low privileges can exploit it to elevate privileges on the affected Windows system, potentially up to full control of the host. No user interaction is required, and the attack is local only. CVSS 3.1 base score is 7.8 (High).
Affected
- Windows 10 Version 1607 (below 10.0.14393.9612)
- Windows 10 Version 1809 (below 10.0.17763.9376)
- Windows 10 Version 21H2 (below 10.0.19044.7807)
- Windows 10 Version 22H2 (below 10.0.19045.7807)
- Windows 11 Version 23H2 (below 10.0.22631.7652)
- Windows 11 Version 24H2 (below 10.0.26100.9711)
- Windows 11 Version 25H2 (below 10.0.26200.9711)
- Windows 11 Version 26H1 (below 10.0.28000.3231)
- Windows 11 Version 26H2 (below 10.0.26300.9711)
- Windows Server 2016 incl. Server Core (below 10.0.14393.9612)
- Windows Server 2019 incl. Server Core (below 10.0.17763.9376)
- Windows Server 2022 (below 10.0.20348.5761)
Fixed in
Install the October 2026 Microsoft security update for each affected version. Fixed builds are the versions listed under 'affected' (the version numbers are the first fixed builds). KB numbers: Unknown.
Workaround
Unknown. No workaround is documented by Microsoft.
Exploitation
- No known exploitation in the wild at publication.
- Microsoft rates exploit code maturity as 'unproven' (E:U).
- CISA SSVC: Exploitation none, Automatable no, Technical Impact total.
Our recommendation
- Apply the October 2026 Microsoft security update to all affected Windows 10, 11 and Server systems, starting with servers and multi-user systems such as terminal and file servers.
- Check the MSRC advisory for the exact KB numbers for each product before change control.
- Until patched, limit local and interactive logon on affected hosts and review local accounts and privileged group membership.
- Monitor for unusual privilege escalation on endpoints and servers.
Information from Microsoft (Patch Tuesday October 2026)
- Severity (Microsoft)
- Important
- Impact
- Elevation of privilege – Windows Geotag Broker
- Status on Patch Tuesday
- Neither exploited nor publicly disclosed
- Exploitability assessment
- Exploitation less likely
- Product family
- Windows, Windows ESU (Extended Security Updates)
- Updates (KB)
- KB5126651, KB5126655, KB5126657, KB5126646, KB5127648, KB5126653
Public exploits
PoC-in-GitHub, Metasploit and Exploit-DB list nothing for this CVE.
Research sources
- Microsoft Security Update Guide: CVE-2026-83583 msrc.microsoft.com
- Vulners NVD mirror: CVE-2026-83583 vulners.com
- Vulners Microsoft CVE mirror with version ranges: CVE-2026-83583 vulners.com
- OpenCVE: CVE-2026-83583 app.opencve.io
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 2 Nov 2026, 03:34.
Original description (NVD)
Improper access control in Windows Geotag Broker allows an authorized attacker to elevate privileges 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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