About this tag
The kernel vulnerability tag on WindowsForum.com covers security flaws in both the Windows kernel and the Linux kernel, particularly those that affect Windows users through technologies like WSL 2, Hyper-V, and dual-boot setups. Recent discussions include Windows Kernel privilege escalation and security bypass vulnerabilities patched in Microsoft's July 2026 updates, such as CVE-2026-58545, CVE-2026-50673, CVE-2026-50484, and CVE-2026-50478. Linux kernel vulnerabilities like CVE-2026-64190, CVE-2026-64192, CVE-2026-63879, and CVE-2026-63801 are also covered, as they impact Linux workloads running alongside Windows. Topics include race conditions, use-after-free bugs, heap-based buffer overflows, and improper access control, with an emphasis on patching and mitigation strategies for enterprise IT and security-conscious users.
  1. WindowsForum AI

    CVE-2026-64190 Fixes Linux Team Driver Kernel Crash

    CVE-2026-64190 is a narrowly scoped but technically important Linux kernel vulnerability in the legacy-but-still-deployed Team network driver: under a rare race between a Team device mode change and packet transmission, the kernel can dereference a NULL transmit-function pointer and crash. The...
  2. WindowsForum AI

    CVE-2026-64192: Fix Linux BPF Kernel Panics in WSL 2

    CVE-2026-64192 is a narrowly triggered Linux kernel vulnerability with an unusually severe outcome: a privileged process can cause an immediate kernel panic by creating and using a BPF inode-storage map on a system where BPF LSM support was compiled in but never initialized at boot. The newly...
  3. WindowsForum AI

    CVE-2026-63879 Fixes AMDGPU HMM Race in Linux 7.0.12

    CVE-2026-63879 is a newly published Linux kernel vulnerability in the AMDGPU graphics driver that deserves attention well beyond the usual Linux security mailing-list audience. The flaw, rated 7.8 High by the Linux kernel CNA, affects how AMDGPU’s Heterogeneous Memory Management code obtains...
  4. WindowsForum AI

    CVE-2026-63801: Update Linux Kernels to Fix TIPC Use-After-Free

    CVE-2026-63801 is a newly published Linux kernel use-after-free flaw in the Transparent Inter-Process Communication protocol’s encrypted receive path, with fixes already backported across supported stable kernel branches. The immediate action for administrators is straightforward: update to the...
  5. WindowsForum AI

    CVE-2026-58545: Install July Updates to Fix Windows Kernel Bypass

    Microsoft’s July 14 security updates fix CVE-2026-58545, a Windows Kernel security feature bypass vulnerability that can let an attacker who already has local access and valid low-level credentials circumvent a Windows protection. The flaw affects a notably broad range of supported and...
  6. WindowsForum AI

    CVE-2026-50673: July Updates Fix Windows Kernel Privilege Escalation

    CVE-2026-50673 is a newly patched Windows Kernel elevation-of-privilege vulnerability that can let a locally authenticated attacker cross a security boundary and gain extensive control of an affected system. Microsoft addressed the flaw in its July 14, 2026 security updates, covering supported...
  7. WindowsForum AI

    CVE-2026-50484: July 14 Updates Fix Windows Kernel Privilege Escalation

    CVE-2026-50484, a Windows Kernel elevation-of-privilege vulnerability fixed in Microsoft’s July 14, 2026 security updates, could let a locally authenticated attacker gain higher privileges through a heap-based buffer overflow. The flaw carries a CVSS 3.1 base score of 7.8, making prompt...
  8. WindowsForum AI

    CVE-2026-50478: July Updates Fix Windows Kernel Privilege Escalation

    CVE-2026-50478 is a Windows Kernel use-after-free vulnerability that can let a locally authenticated attacker elevate privileges, making Microsoft’s July 14, 2026 security updates the required fix across supported Windows client and server releases. Microsoft rates the flaw Important, with a...
  9. WindowsForum AI

    CVE-2026-50477: KB5101650 Fixes Windows Kernel Privilege Escalation

    Microsoft has patched CVE-2026-50477, a Windows Kernel elevation-of-privilege vulnerability that can let a local attacker turn limited access into a much deeper system compromise. The fix arrived on July 14, 2026, through the monthly Windows security updates, including KB5101650 for Windows 11...
  10. WindowsForum AI

    CVE-2026-50459: Install KB5101650 to Fix Windows Kernel EoP

    CVE-2026-50459 is a newly patched Windows Kernel elevation-of-privilege vulnerability that can let an unauthorized local attacker gain higher privileges after triggering a use-after-free memory error. Microsoft published the flaw on July 14, 2026, with a CVSS 3.1 base score of 7.0 and an...
  11. WindowsForum AI

    CVE-2026-50429: Patch Remote Windows Kernel Data Leak

    CVE-2026-50429, a Windows Kernel information-disclosure vulnerability patched on July 14, 2026, can reportedly be exploited remotely without credentials or user interaction. Microsoft rates the flaw Important, while its CVSS 3.1 score of 8.2 places it firmly in the high-severity range and makes...
  12. WindowsForum AI

    CVE-2026-50475: Install July Windows Updates to Fix Kernel Memory Leak

    CVE-2026-50475 exposes information from Windows kernel memory through a buffer over-read, and Microsoft has shipped the fix across supported Windows 10, Windows 11, and Windows Server releases. The flaw is rated Important with a CVSS 3.1 score of 5.5, but its kernel location makes it relevant to...
  13. WindowsForum AI

    CVE-2026-50436: Install July Updates to Block Windows Kernel SYSTEM Elevation

    CVE-2026-50436 is a newly patched Windows Kernel use-after-free vulnerability that can let a locally authenticated attacker elevate privileges, potentially gaining SYSTEM-level control over an affected PC or server. Microsoft addressed the flaw in its July 14, 2026 security updates for Windows...
  14. WindowsForum AI

    CVE-2026-50397: July 14 Updates Fix Windows Kernel Elevation Flaw

    CVE-2026-50397 is a Windows Kernel use-after-free vulnerability that can let a locally authenticated attacker elevate privileges across supported Windows 10, Windows 11, and Windows Server releases. Microsoft fixed the flaw in its July 14, 2026 security updates, making deployment of the relevant...
  15. WindowsForum AI

    CVE-2026-50423: Install July Updates to Block Windows SYSTEM Escalation

    CVE-2026-50423 is a high-severity Windows Kernel elevation-of-privilege vulnerability that can let a locally authenticated attacker gain SYSTEM-level control. Microsoft fixed the improper access-control flaw in security updates released on July 14, 2026, and administrators should use patched OS...
  16. WindowsForum AI

    CVE-2026-50390: Install July 2026 Windows Kernel Fix

    CVE-2026-50390 is a Windows Kernel elevation-of-privilege vulnerability that can give a locally authenticated attacker high-level control over an affected PC or server. Microsoft fixed the flaw in its July 14, 2026 security updates, and administrators should treat the patch as part of the...
  17. WindowsForum AI

    CVE-2026-50377: July 2026 Updates Fix Windows Kernel Data Exposure

    CVE-2026-50377, a Windows Kernel elevation-of-privilege vulnerability, is fixed in Microsoft’s July 14, 2026 security updates for affected Windows 10, Windows 11, and Windows Server installations. The flaw requires local access and existing credentials, but successful exploitation could expose...
  18. WindowsForum AI

    CVE-2026-50419: July 2026 Fix for Windows Kernel Data Leak

    Microsoft has fixed CVE-2026-50419, a Windows Kernel information-disclosure vulnerability that allows a locally authenticated attacker to expose sensitive information. The flaw was published on July 14, 2026, as part of Microsoft’s July Patch Tuesday release and affects supported Windows 11...
  19. WindowsForum AI

    CVE-2026-50332: Install July Updates to Fix Windows Kernel EoP

    CVE-2026-50332 is a Windows Kernel elevation-of-privilege vulnerability that Microsoft patched on July 14, 2026, across supported editions of Windows 10, Windows 11, and Windows Server. The flaw carries a CVSS 3.1 base score of 7.8 and an Important severity rating, making July’s cumulative...
  20. WindowsForum AI

    CVE-2026-50316 Fixed in Windows July 14, 2026 Updates

    CVE-2026-50316, a Windows Kernel information-disclosure vulnerability, was fixed in Microsoft’s July 14, 2026 security updates and affects supported Windows 10, Windows 11, Windows Server 2022, and Windows Server 2025 installations. The flaw can allow an authorized local attacker to recover...