Microsoft Windows: Elevation of privilege in bundled SQLite library
Summary
A local out-of-bounds read in the SQLite library shipped with supported Windows versions allows an authorized local user to elevate privileges. An attacker needs local code execution or a low-privileged account on the affected system; remote exploitation without a foothold is not indicated. The main risk is escalation after a compromise, for example through phishing or a hijacked user session.
Affected
- Windows 10 Version 1607 and Windows Server 2016: builds before 10.0.14393.9612
- Windows 10 Version 1809 and Windows Server 2019: builds before 10.0.17763.9376
- Windows 10 Version 21H2: builds before 10.0.19044.7807
- Windows 10 Version 22H2: builds before 10.0.19045.7807
- Windows 11 Version 23H2: builds before 10.0.22631.7652
- Windows 11 Version 24H2: builds before 10.0.26100.9711
- Windows 11 Version 25H2: builds before 10.0.26200.9711
- Windows 11 Version 26H1: builds before 10.0.28000.3231
- Windows 11 Version 26H2: builds before 10.0.26300.9711
- Windows Server 2022: builds before 10.0.20348.5761
- Windows Server 2019 and 2016 Server Core installations: as above
Fixed in
- Install the October 2026 Windows security update for your version (fixed builds as listed in the affected ranges above).
- Windows 10 Version 1809 / Server 2019: KB5126651 (per third-party trackers, to be verified)
- Windows 11 Version 23H2: KB5126653 (per third-party trackers, to be verified)
- Windows Server 2025: KB5126646 (per third-party trackers, to be verified)
- Some fixed builds differ between sources and must be confirmed on the MSRC page before deployment.
Workaround
Unknown. No vendor-documented workaround or mitigation has been identified.
Exploitation
- Microsoft reports the vulnerability as not publicly disclosed and not exploited.
- No publicly available exploit code is known.
- Microsoft's SSVC assessment: exploitation none, not automatable, total technical impact.
- EPSS score is roughly 0.003.
Our recommendation
- Install the October 2026 Windows security updates quickly on multi-user systems, terminal servers and shared workstations.
- Verify the fixed build for each product on the MSRC Security Update Guide before rollout.
- Limit local logon rights and restrict untrusted local code execution as general hardening.
- Monitor the NVD analysis and any reports of exploitation.
Information from Microsoft (Patch Tuesday October 2026)
- Severity (Microsoft)
- Important
- Impact
- Elevation of privilege – SQLite
- Status on Patch Tuesday
- Neither exploited nor publicly disclosed
- Exploitability assessment
- Exploitation less likely
- Product family
- Windows, Windows ESU (Extended Security Updates)
- Updates (KB)
- KB5127648, KB5126651, KB5126655, KB5126657, KB5126646, KB5126653
Public exploits
PoC-in-GitHub, Metasploit and Exploit-DB list nothing for this CVE.
Research sources
- Microsoft Security Update Guide: CVE-2026-69867 msrc.microsoft.com
- Vulners CVE List record vulners.com
- Vulners MSCVE record vulners.com
- Rapid7 record (Windows) vulners.com
- Rapid7 record vulners.com
- BDU FSTEC record vulners.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 2 Nov 2026, 04:48.
Original description (NVD)
Out-of-bounds read in SQLite 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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