CVE-2025-27465

Certain instructions need intercepting and emulating by Xen. In some cases Xen emulates the instruction by replaying it, using an executable stub. Some instructions may raise an exception, which is supposed to be handled gracefully. Certain replayed instructions have additional logic to set up and recover the changes to the arithmetic flags. For replayed instructions where the flags recovery logic is used, the metadata for exception handling was incorrect, preventing Xen from handling the the exception gracefully, treating it as fatal instead.

CVSS v3 4.3 MEDIUM

4.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact LOW

Scope UNCHANGED

References

Link	Resource
https://xenbits.xenproject.org/xsa/advisory-470.html
http://www.openwall.com/lists/oss-security/2025/07/01/1
http://xenbits.xen.org/xsa/advisory-470.html

Configurations

No configuration.

History

04 Nov 2025, 22:16

Type	Values Removed	Values Added
References		() http://www.openwall.com/lists/oss-security/2025/07/01/1 - () http://xenbits.xen.org/xsa/advisory-470.html -

Information

Published : 2025-07-16 09:15

Updated : 2025-11-04 22:16

NVD link : CVE-2025-27465

Mitre link : CVE-2025-27465

CVE.ORG link : CVE-2025-27465

JSON object : View

Products Affected

No product.

CWE

CWE-755

Improper Handling of Exceptional Conditions

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