Microsoft Graphics Component: Information disclosure through out-of-bounds read
Summary
An out-of-bounds read in the Microsoft Graphics Component of supported Windows 10, Windows 11 and Windows Server versions allows an attacker to disclose information. The attacker needs local access and low privileges, and a user must take an action such as opening a crafted file or running an app. The CVSS base score is 5.5 (medium) with high confidentiality impact and no integrity or availability impact.
Affected
- Windows 10 Version 1607 and Windows Server 2016 (including Server Core): 10.0.14393.0 to before 10.0.14393.9688
- Windows 10 Version 1809 and Windows Server 2019 (including Server Core): 10.0.17763.0 to before 10.0.17763.9487
- Windows 10 Version 21H2: 10.0.19044.0 to before 10.0.19044.7846
- Windows 10 Version 22H2: 10.0.19045.0 to before 10.0.19045.7846
- Windows 11 Version 23H2: 10.0.22631.0 to before 10.0.22631.7711
- Windows 11 Version 24H2: 10.0.26100.0 to before 10.0.26100.9974
- Windows 11 Version 25H2 and 26H2: 10.0.26200.0 to before 10.0.26200.9974 and 10.0.26300.0 to before 10.0.26300.9974
- Windows 11 Version 26H1: 10.0.28000.0 to before 10.0.28000.3501
- Windows Server 2022: 10.0.20348.0 to before 10.0.20348.5870
Fixed in
- Install the November 2026 security update for the affected Windows version, which contains the fixed builds listed above.
- Verify the exact fixed build for each product in the MSRC advisory before rollout.
Workaround
No workaround known. Install the security update.
Exploitation
- CISA SSVC: exploitation none, not automatable, partial technical impact.
- Rapid7 rates exploitation as less likely. The vulnerability is not publicly disclosed.
- No public proof of concept or CISA KEV entry known.
Our recommendation
- Install the November 2026 Windows security update on all affected systems, prioritising multi-user terminal servers and shared workstations.
- Check whether Windows 10 systems still receive security updates (ESU), because systems without ESU will not get this fix.
- Restrict local accounts to least privilege and limit execution of untrusted files and apps.
- Monitor for unusual activity on affected systems until patching is complete.
Information from Microsoft (Patch Tuesday November 2026)
- Severity (Microsoft)
- Important
- Impact
- Information disclosure – Microsoft Graphics Component
- Status on Patch Tuesday
- Neither exploited nor publicly disclosed
- Exploitability assessment
- Exploitation less likely
- Product family
- Windows, Windows ESU (Extended Security Updates)
- Updates (KB)
- KB5132059, KB5131291, KB5131085, KB5131096, KB5131090, KB5131087
Public exploits
PoC-in-GitHub, Metasploit and Exploit-DB list nothing for this CVE.
Research sources
- CVE.org record CVE-2026-112754 www.cve.org
- MSRC Security Update Guide msrc.microsoft.com
- ZDI November 2026 security update review www.thezdi.com
- Rapid7 Patch Tuesday November 2026 www.rapid7.com
- BleepingComputer Microsoft November 2026 Patch Tuesday www.bleepingcomputer.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, 16:54.
Original description (NVD)
Out-of-bounds read in Microsoft Graphics Component allows an unauthorized attacker to disclose information 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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