High (8.8) in Microsoft XML Core Services. In CISA KEV since 2022-06-08. EPSS 84% chance of exploitation in the next 30 days.
Microsoft XML Core Services 3.0, 4.0, 5.0, and 6.0 accesses uninitialized memory locations, which allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted web site.
Severity
CVSS 3.1
8.8 high
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS
84% chance of exploitation in the next 30 days; higher than 99% of CVEs (scores of 2026-10-31)