CVE-2026-55007
Medium
Elevated severity or exploit probability.
CVSS base
8.1
HIGH
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS — probability of exploitation (30 days)
0.7%
52.0th percentile
CISA KEV
Not listed
Weakness / dates
CWE-415
Published 2026-09-08 · modified 2026-09-09
Description
Double free in Microsoft Exchange Server allows an unauthorized attacker to execute code over a network.