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CVE-2026-77910high8.8

Microsoft Exchange Server Elevation of Privilege Vulnerability

Impact

Incorrect authorization in Microsoft Exchange Server allows an authorized attacker to elevate privileges over a network.

Source excerpt · microsoft

Affected packages

This source has no supported package-version data for matching. You can read the advisory here, but this record alone cannot power a dependency check.

Affected products

Vendor version evidence. Product records are separate from automatic dependency matching.

Microsoft · Microsoft Exchange Server 2016 Cumulative Update 23

Platforms: x64-based Systems

Version / rangeSource status
15.01.0.0 to before 15.01.2507.077affected
microsoft version evidence

Microsoft · Microsoft Exchange Server 2019 Cumulative Update 14

Platforms: x64-based Systems

Version / rangeSource status
15.02.0.0 to before 15.02.1544.050affected
microsoft version evidence

Microsoft · Microsoft Exchange Server 2019 Cumulative Update 15

Platforms: x64-based Systems

Version / rangeSource status
15.02.0.0 to before 15.02.1748.055affected
microsoft version evidence

Microsoft · Microsoft Exchange Server Subscription Edition RTM

Platforms: x64-based Systems

Version / rangeSource status
15.02.0.0 to before 15.02.2562.056affected
microsoft version evidence

Original source description

Incorrect authorization in Microsoft Exchange Server allows an authorized attacker to elevate privileges over a network.

References