CVE-2026-45501
Microsoft Exchange Server Spoofing Vulnerability
Published: Jun 9, 2026Updated: Jun 9, 2026 Sources: CVE List NVD
6.5CVSS
MEDIUMImproper neutralization of input during web page generation ('cross-site scripting') in Microsoft Exchange Server allows an unauthorized attacker to perform spoofing over a network.
EPSS Score
0.1%
Top 72.0%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available
CVSS Vector Breakdown
Exploitability
AV:NAttack VectorNetwork
AC:LAttack ComplexityLow
PR:LPrivileges RequiredLow
UI:NUser InteractionNone
Scope
S:UScopeUnchanged
Impact
C:HConfidentialityHigh
I:NIntegrityNone
A:NAvailabilityNone
Weaknesses
Affected Products
Attack Graph
Products CVE Techniques Tactics
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Exploitability
No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.
MITRE ATT&CK
2 techniques Command and Control
Initial Access
References
Timeline
Published
Jun 9, 2026
Last Updated
Jun 9, 2026
News mentions
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