CVE-2026-83916 Windows Error Reporting - Use After Free

Windows Error Reporting contains a double free vulnerability caused by improper memory management, letting authorized attackers execute code locally, exploit requires local access with authorization.

CVSS base score 7.0 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Required
EPSS
0.27% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Use After Free
Impact
Remote Code Execution
CVSS vector
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Published
13 October 2026
Updated
15 October 2026
Weakness
CWE-415

Vendor fix

Update to the latest Windows version with security patches.

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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