Oct 2025: Windows Authentication Elevation of Privilege Vulnerability
CVE-2025-59275 Published on October 14, 2025
Windows Authentication Elevation of Privilege Vulnerability
Improper validation of specified type of input in Windows Authentication Methods allows an authorized attacker to elevate privileges locally.
Weakness Types
Improper Validation of Specified Type of Input
The product receives input that is expected to be of a certain type, but it does not validate or incorrectly validates that the input is actually of the expected type.
Out-of-bounds Read
The software reads data past the end, or before the beginning, of the intended buffer. Typically, this can allow attackers to read sensitive information from other memory locations or cause a crash. A crash can occur when the code reads a variable amount of data and assumes that a sentinel exists to stop the read operation, such as a NUL in a string. The expected sentinel might not be located in the out-of-bounds memory, causing excessive data to be read, leading to a segmentation fault or a buffer overflow. The software may modify an index or perform pointer arithmetic that references a memory location that is outside of the boundaries of the buffer. A subsequent read operation then produces undefined or unexpected results.
Heap-based Buffer Overflow
A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().
Products Associated with CVE-2025-59275
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Affected Versions
Microsoft Windows 10 Version 1507:- Version 10.0.10240.0 and below 10.0.10240.21161 is affected.
- Version 10.0.14393.0 and below 10.0.14393.8519 is affected.
- Version 10.0.17763.0 and below 10.0.17763.7919 is affected.
- Version 10.0.19044.0 and below 10.0.19044.6456 is affected.
- Version 10.0.19045.0 and below 10.0.19045.6456 is affected.
- Version 10.0.22621.0 and below 10.0.22621.6060 is affected.
- Version 10.0.22631.0 and below 10.0.22631.6060 is affected.
- Version 10.0.22631.0 and below 10.0.22631.6060 is affected.
- Version 10.0.26100.0 and below 10.0.26100.6899 is affected.
- Version 6.1.7601.0 and below 6.1.7601.27974 is affected.
- Version 6.1.7601.0 and below 6.1.7601.27974 is affected.
- Version 6.0.6003.0 and below 6.0.6003.23571 is affected.
- Version 6.0.6003.0 and below 6.0.6003.23571 is affected.
- Version 6.2.9200.0 and below 6.2.9200.25722 is affected.
- Version 6.2.9200.0 and below 6.2.9200.25722 is affected.
- Version 6.3.9600.0 and below 6.3.9600.22824 is affected.
- Version 6.3.9600.0 and below 6.3.9600.22824 is affected.
- Version 10.0.14393.0 and below 10.0.14393.8519 is affected.
- Version 10.0.14393.0 and below 10.0.14393.8519 is affected.
- Version 10.0.17763.0 and below 10.0.17763.7919 is affected.
- Version 10.0.17763.0 and below 10.0.17763.7919 is affected.
- Version 10.0.20348.0 and below 10.0.20348.4294 is affected.
- Version 10.0.25398.0 and below 10.0.25398.1913 is affected.
- Version 10.0.26100.0 and below 10.0.26100.6899 is affected.
- Version 10.0.26100.0 and below 10.0.26100.6899 is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.