CVE-2026-55008
Medium
Elevated severity or exploit probability.
CVSS base
9.6
CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
EPSS — probability of exploitation (30 days)
0.9%
56.8th percentile
CISA KEV
Not listed
Weakness / dates
CWE-79
Published 2026-07-14 · modified 2026-07-24
Description
Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Exchange Server allows an unauthorized attacker to perform spoofing over a network.