Xen Hypervisor CVE-2025-58150: OOB Write to Per-CPU Var in Shadow Mode Tracing
CVE-2025-58150 Published on January 28, 2026
x86: buffer overrun with shadow paging + tracing
Shadow mode tracing code uses a set of per-CPU variables to avoid
cumbersome parameter passing. Some of these variables are written to
with guest controlled data, of guest controllable size. That size can
be larger than the variable, and bounding of the writes was missing.
Vulnerability Analysis
CVE-2025-58150 is exploitable with local system access, and requires small amount of user privileges. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to be very high.
Weakness Type
What is a Memory Corruption Vulnerability?
The software writes data past the end, or before the beginning, of the intended buffer. Typically, this can result in corruption of data, a crash, or code execution. 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 write operation then produces undefined or unexpected results.
CVE-2025-58150 has been classified to as a Memory Corruption vulnerability or weakness.
Products Associated with CVE-2025-58150
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Affected Versions
Xen Version consult Xen advisory XSA-477 is unknown by CVE-2025-58150Exploit 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.