Microsoft Windows CD-ROM Driver: Local privilege escalation via integer overflow
Summary
The Windows CD-ROM Driver contains an integer overflow or wraparound (CWE-190). An authorized local user with low privileges can exploit it to gain SYSTEM rights. The attacker needs a local foothold, so the risk is mainly post-compromise, for example from malware or an insider with a standard user account.
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, to be verified against MSRC)
- Windows 11 Version 23H2 (before 10.0.22631.7711, to be verified against MSRC)
- Windows 11 Version 24H2 (before 10.0.26100.9974, to be verified against MSRC)
- Windows 11 Version 25H2 (before 10.0.26200.9974, to be verified against MSRC)
- Windows 11 Version 26H1 (before 10.0.28000.3501, to be verified against MSRC)
- Windows 11 Version 26H2 (before 10.0.26300.9974, to be verified against MSRC)
- Windows Server 2016 (before 10.0.14393.9688)
- Windows Server 2019 (before 10.0.17763.9487)
- Windows Server 2022 (before 10.0.20348.5870, to be verified against MSRC)
Fixed in
Unknown. The Microsoft Security Update Guide entry has not been checked. Builds listed as fixed are based on the CVE record and third-party data; KB numbers are unconfirmed.
Workaround
Unknown. No workaround was found in the sources.
Exploitation
- Exploited in the wild: unknown.
- Public proof of concept: none found.
- Microsoft exploitability assessment: unknown.
- CISA SSVC: Exploitation none, Automatable no, Technical Impact total.
Our recommendation
- Check whether Windows 10 1607, 1809 and 21H2 hosts are still in service and still receive updates.
- Inventory Windows 10 and Windows Server 2016/2019/2022 hosts and identify their build numbers.
- Verify the fixed builds and KB numbers in the MSRC advisory before patching.
- Apply the November 2026 security updates in the next maintenance window, prioritising shared terminals and staff workstations.
- Restrict local logon and standard user rights where possible.
Information from Microsoft (Patch Tuesday November 2026)
- Severity (Microsoft)
- Important
- Impact
- Elevation of privilege – Windows CD-ROM Driver
- 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
- CVE Record CVE-2026-108405 (CVE.org) www.cve.org
- Microsoft Security Update Guide CVE-2026-108405 msrc.microsoft.com
- Strix CVE-2026-108405 www.strix.ai
- Rapid7 Patch Tuesday November 2026 www.rapid7.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, 04:26.
Original description (NVD)
Integer overflow or wraparound in Windows CD-ROM Driver 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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