CVE Field Guide
About Us
CVE-2026-66801
PUBLISHED
Microsoft Xbox Remote Code Execution Vulnerability
Assigner:
microsoft
Reserved:
27.07.2026
Published:
10.11.2026
Updated:
12.11.2026
Heap-based buffer overflow in Xbox allows an unauthorized attacker to execute code over a network.
Metrics
CVSS 3.1
CVSS Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
CVSS Score:
9.8
CVSS score
9.8
Attack Vector
Network
Scope
Unchanged
Attack Complexity
Low
Confidentiality Impact
High
Privileges Required
None
Integrity Impact
High
User Interaction
None
Availability Impact
High
CVSS 3.1
Product Status
Vendor
Microsoft
Product
Microsoft GDK
Versions
affected from 1.0.0.0 to 2610 (excl.)
References
Microsoft Xbox Remote Code Execution Vulnerability
Problem Types