CVE-2025-58150
x86: buffer overrun with shadow paging + tracing
HIGH
8.8
CVSS Score
Published: January 28, 2026 at 03:33 PM UTC
Updated: June 17, 2026 at 09:43 AM UTC
1 product affected across 1 vendorXen
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Severity
HIGH8.8
Exploit prediction
EPSS 0.1%
SSVC
No known exploit
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.
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
References (3)
Mailing ListMitigationPatchThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.openwall.com/lists/oss-security/2026/01/27/1Mailing ListPatchVendor Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
http://xenbits.xen.org/xsa/advisory-477.htmlSSVC — Action Prioritization
SSVCNo known exploitNot automatableTotal impact
SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.
CVSS
8.8HIGHCISA-ADP
- Attack Vector
- LOCAL
- Complexity
- LOW
- Privileges
- LOW
- User Interaction
- NONE
- Scope
- CHANGED
- Confidentiality
- HIGH
- Integrity
- HIGH
- Availability
- HIGH
Vector?
Quick Info
StatusANALYZED
CWE
CWE-787
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