Windows 11 Version 23H2 vulnerabilities and CVEs
Known vulnerabilities affecting Windows 11 Version 23H2, with exploit availability attached to each one, so you can tell a flaw someone has written code for from one nobody has.
52 vulnerabilities tracked. 1 with public exploit code.
- 9.8 Heap-based buffer overflow in Microsoft QUIC allows an unauthorized attacker to execute code over a network.
- 9.8 Use after free in OpenSSH for Windows allows an unauthorized attacker to execute code over a network.
- 9.8 Heap-based buffer overflow in Windows Error Reporting allows an unauthorized attacker to execute code over a network.
- 9.8 Heap-based buffer overflow in Windows Text Shaping allows an unauthorized attacker to execute code over a network.
- 9.8 Out-of-bounds read in Windows Partition Management Driver allows an unauthorized attacker to execute code over a network.
- 9.8 Use after free in Microsoft Windows Search Component allows an unauthorized attacker to elevate privileges over a network.
- 9.0 No cwe for this issue in Windows Schannel allows an unauthorized attacker to perform spoofing over a network.
- 7.8 Use after free in Microsoft Windows Search Component allows an authorized attacker to elevate privileges locally.
- 7.8 Heap-based buffer overflow in HID class driver allows an authorized attacker to elevate privileges locally.
- 7.8 Use after free in Windows Broadcast DVR User Service allows an authorized attacker to elevate privileges locally.
- 7.8 Use after free in Windows Broadcast DVR User Service allows an authorized attacker to elevate privileges locally.
- 7.8 Use after free in Windows Broadcast DVR User Service allows an authorized attacker to elevate privileges locally.
- 7.8 Double free in OpenSSH for Windows allows an authorized attacker to elevate privileges locally.
- 7.8 Improper neutralization of argument delimiters in a command ('argument injection') in Windows Error Reporting allows an authorized attacker…
- 7.5 No cwe for this issue in Active Directory Federation Services (AD FS) allows an unauthorized attacker to perform spoofing over a network.
- 7.5 Double free in Windows Internet Information Services allows an unauthorized attacker to deny service over a network.
- 7.0 Improper link resolution before file access ('link following') in Windows Backup Engine allows an authorized attacker to elevate privileges…
- 7.0 Double free in Windows Kerberos allows an authorized attacker to elevate privileges locally.
- 7.0 Use after free in Windows Broadcast DVR User Service allows an authorized attacker to elevate privileges locally.
- 7.0 Double free in Windows Update Orchestrator Service allows an authorized attacker to elevate privileges locally.
- 7.0 Use after free in Windows DirectX allows an authorized attacker to elevate privileges locally.
- 7.0 Use after free in Windows WebView allows an authorized attacker to elevate privileges locally.
- 6.5 Out-of-bounds read in DNS Server allows an authorized attacker to disclose information over a network.
- 6.5 Out-of-bounds read in DNS Server allows an authorized attacker to disclose information over a network.
- 6.5 Out-of-bounds read in DNS Server allows an authorized attacker to disclose information over a network.
- 6.5 Out-of-bounds read in DNS Server allows an authorized attacker to disclose information over a network.
- 6.5 Out-of-bounds read in DNS Server allows an authorized attacker to disclose information over a network.
- 6.5 Out-of-bounds read in DNS Server allows an authorized attacker to disclose information over a network.
- 6.5 Out-of-bounds read in DNS Server allows an authorized attacker to disclose information over a network.
- 6.5 Out-of-bounds read in DNS Server allows an authorized attacker to disclose information over a network.
- 6.5 Out-of-bounds read in DNS Server allows an authorized attacker to disclose information over a network.
- 6.5 Out-of-bounds read in DNS Server allows an authorized attacker to disclose information over a network.
- 6.5 Out-of-bounds read in DNS Server allows an authorized attacker to disclose information over a network.
- 6.5 Out-of-bounds read in DNS Server allows an authorized attacker to disclose information over a network.
- 6.5 Out-of-bounds read in DNS Server allows an authorized attacker to disclose information over a network.
- 6.5 Out-of-bounds read in DNS Server allows an authorized attacker to disclose information over a network.
- 6.5 Out-of-bounds read in DNS Server allows an authorized attacker to disclose information over a network.
- 6.5 Out-of-bounds read in DNS Server allows an authorized attacker to disclose information over a network.
- 6.5 Out-of-bounds read in DNS Server allows an authorized attacker to disclose information over a network.
- 6.5 Out-of-bounds read in DNS Server allows an authorized attacker to disclose information over a network.
- 6.5 Buffer over-read in DNS Server allows an authorized attacker to disclose information over a network.
- 6.5 Out-of-bounds read in DNS Server allows an authorized attacker to disclose information over a network.
- 6.5 Heap-based buffer overflow in Windows Hyper-V allows an authorized attacker to disclose information over a network.
- 6.5 Heap-based buffer overflow in DNS Server allows an authorized attacker to disclose information over a network.
- 6.5 Out-of-bounds read in DNS Server allows an authorized attacker to disclose information over a network.
- 6.5 Out-of-bounds read in DNS Server allows an authorized attacker to disclose information over a network.
- 6.5 Out-of-bounds read in DNS Server allows an authorized attacker to disclose information over a network.
- 6.5 Out-of-bounds read in DNS Server allows an authorized attacker to disclose information over a network.
- 6.5 Out-of-bounds read in DNS Server allows an authorized attacker to disclose information over a network.
- 6.5 Out-of-bounds read in DNS Server allows an authorized attacker to disclose information over a network.
- 6.5 Out-of-bounds read in DNS Server allows an authorized attacker to disclose information over a network.
- 6.5 Out-of-bounds read in DNS Server allows an authorized attacker to disclose information over a network.
What this covers
This feed accumulates forward from the day it started storing records, and a name search that finds nothing here is also looked up against the registers directly — so an older advisory resolves even when it predates the corpus. It is still a reading view, not a substitute for the vendor's own advisory, and absence from this page is not a statement that Windows 11 Version 23H2 is free of vulnerabilities.
Query this from an agent over MCP · Check a lockfile by version
Other products tracked here
Windows 11 version 26H1 Windows 11 Version 25H2 Windows 11 Version 24H2 Windows Server 2025 Windows Server 2025 (Server Core installation) Windows Server 2022 Windows 10 Version 21H2 Windows Server 2019 (Server Core installation) Windows 10 Version 22H2 Windows Server 2019 Windows 10 Version 1809 Windows Server 2016 (Server Core installation) Windows Server 2016 Windows 10 Version 1607 Windows Server 2012 R2 (Server Core installation) Windows Server 2012 R2 Windows Server 2012 (Server Core installation) Windows Server 2012 Red Hat Enterprise Linux 9 MediaTek chipset Red Hat Enterprise Linux 8 n/a Windows 11 Version 26H2 Red Hat Enterprise Linux 10