CVE-2026-88159 Windows Background Intelligent Transfer Service - Remote Code Execution

Windows Background Intelligent Transfer Service contains a use after free vulnerability allowing unauthorized attackers to execute code over a network, exploit requires network access.

CVSS base score 8.8 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Required
EPSS
1.02% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Remote Code Execution
Impact
Remote Code Execution
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Published
13 October 2026
Updated
15 October 2026
Weakness
CWE-125

Vendor fix

Update to the latest version of Windows with security patches applied.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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