Windows Remote Desktop Client: Out-of-bounds read leads to information disclosure
Summary
The Windows Remote Desktop Client contains an out-of-bounds read flaw that allows an authorized local user to read memory contents they should not be able to access. An attacker needs a local logon with low privileges, and the impact is limited to high confidentiality loss, with no integrity or availability impact. No exploitation has been reported so far.
Affected
- Windows 11 Version 23H2 (x64 and ARM64): 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: 10.0.26200.0 to before 10.0.26200.9974
- Windows 11 Version 26H1: 10.0.28000.0 to before 10.0.28000.3501
- Windows 11 Version 26H2: 10.0.26300.0 to before 10.0.26300.9974
- Windows Server 2025 (including Server Core installation): 10.0.26100.0 to before 10.0.26100.33822
- Windows App: unknown
Fixed in
- Windows 11 23H2: 10.0.22631.7711 or later
- Windows 11 24H2: 10.0.26100.9974 or later
- Windows 11 25H2: 10.0.26200.9974 or later
- Windows 11 26H1: 10.0.28000.3501 or later
- Windows 11 26H2: 10.0.26300.9974 or later
- Windows Server 2025: 10.0.26100.33822 or later
- Windows App: unknown, check the Microsoft Security Update Guide
- Patch: November 2026 security updates from Microsoft
Workaround
Unknown. No workaround is documented in the sources reviewed.
Exploitation
- No evidence of exploitation in the wild found at the time of analysis.
- No public proof of concept found.
- CISA SSVC assessment: exploitation none, not automatable, partial technical impact.
- Not listed in CISA KEV at the time of analysis.
Our recommendation
- Install the November 2026 security updates on all affected Windows 11 and Windows Server 2025 systems.
- Prioritise jump hosts, terminal servers and shared workstations.
- Update Windows App to a fixed version once the version is confirmed by Microsoft.
- Limit local logons on shared systems and monitor for unusual local activity.
- No emergency action is required.
Information from Microsoft (Patch Tuesday November 2026)
Public exploits
PoC-in-GitHub, Metasploit and Exploit-DB list nothing for this CVE.
Research sources
- MSRC Security Update Guide: CVE-2026-95908 msrc.microsoft.com
- CVE Record: CVE-2026-95908 www.cve.org
- Windows App what's new (Microsoft Learn) learn.microsoft.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, 16:35.
Original description (NVD)
Out-of-bounds read in Remote Desktop Client allows an authorized 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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