What’s Vulnerable › Vulnerabilities

CVE-2025-58150: x86: buffer overrun with shadow paging + tracing

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-01-28 · updated 2026-06-17
• Weakness: CWE-787

Description

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.

Affected products

• xen: all versions

References

• https://xenbits.xenproject.org/xsa/advisory-477.html
• http://www.openwall.com/lists/oss-security/2026/01/27/1
• http://xenbits.xen.org/xsa/advisory-477.html

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