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CVE-2026-55008

CRITICAL
9.6
CVSS 3.1

Metadata

CVE ID
CVE-2026-55008
State
PUBLISHED
Assigner
microsoft
Reserved
2026-06-16 14:12 UTC
Published
2026-07-14 17:04 UTC
Last updated
2026-07-14 19:38 UTC
Primary CWE
CWE-79
CWE-79: Improper Neutralization of Input During Web Page Gen…
Vendor / Product
Microsoft / Microsoft Exchange Server 2016 Cumulative Update 23
Sources
cve.org  ·  NVD

Severity & Metrics

9.6 CRITICAL CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C
Affected products (4)
VendorProductPlatformVersions
Microsoft Microsoft Exchange Server 2016 Cumulative Update 23 x64-based Systems 15.01.0.0 < 15.01.2507.071
Microsoft Microsoft Exchange Server 2019 Cumulative Update 14 x64-based Systems 15.02.0.0 < 15.02.1544.043
Microsoft Microsoft Exchange Server 2019 Cumulative Update 15 x64-based Systems 15.02.0.0 < 15.02.1748.048
Microsoft Microsoft Exchange Server Subscription Edition RTM x64-based Systems 15.02.0.0 < 15.02.2562.045
Weakness (CWE)
CWESourceDescription
CWE-79 cna CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVSS scores (1)
ScoreSeverityVersionSourceVector
9.6 CRITICAL 3.1 cna CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C
References (1)
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