Integer overflow or wraparound in Microsoft Defender allows an unauthorized attacker to execute code locally.
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-55012
https://www.darkreading.com/vulnerabilities-threats/records-broken-patch-tuesday-raises-triage-stakes
Source: Mitre, NVD
Published: 2026-07-14
Updated: 2026-07-15
Base Score: 7.2
Vector: CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C
Severity: High
Base Score: 7.8
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS: 0.00423