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How the CVE Works
CVE-2025-48808 is a local information disclosure vulnerability in the Windows Kernel. An attacker with low privileges can exploit improper memory handling in the kernel to access sensitive data, such as system memory contents or encryption keys. The flaw arises due to insufficient access controls in a kernel-mode driver, allowing unauthorized read operations. By crafting a malicious system call or using a specially designed application, the attacker can trigger the vulnerability and leak critical kernel memory. This could lead to further exploitation, such as privilege escalation or bypassing security mechanisms.
DailyCVE Form
Platform: Windows
Version: 10/11, Server 2019/2022
Vulnerability: Information Disclosure
Severity: Critical
Date: 07/15/2025
Prediction: Patch by 08/10/2025
What Undercode Say
Analytics:
windbg !analyze -v !pool <leaked_address> dt nt!_KTHREAD
How Exploit:
HANDLE hDevice = CreateFile("\\.\vulndrv", GENERIC_READ, 0, NULL, OPEN_EXISTING, 0, NULL);
DeviceIoControl(hDevice, IOCTL_LEAK_MEMORY, input, inSize, output, outSize, &ret, NULL);
Protection from this CVE:
- Apply Microsoft patch when available
- Restrict local user privileges
- Enable Kernel ASLR
Impact:
- Sensitive kernel memory exposure
- Potential privilege escalation
- System compromise
Sources:
Reported By: nvd.nist.gov
Extra Source Hub:
Undercode
