OS SecurityBleeping Computer
6.5 — HIGH
Microsoft fixes bug behind Windows Server 2025 automatic upgrades
Microsoft has finally fixed a known issue that was causing systems running Windows Server 2019 and 2022 to "unexpectedly" upgrade to Windows Server 2025. [...]
🤖 AI BriefingAuto-generated threat analysis
🔍Threat Overview
A known issue in Windows Server 2019 and 2022 caused systems to automatically upgrade to an unsupported version, Windows Server 2025, without user consent. This vulnerability has been patched by Microsoft.
⚙️Technical Details
Affected Systems
Windows Server 2019Windows Server 2022
Attack Vectors
Automatic upgrades
💥Impact Assessment
Severity: H
Who Is at Risk
Users of Windows Server 2019 and 2022 without up-to-date security patchesOrganizations relying on these operating systems for critical infrastructure
🛡️Recommended Actions
1Apply the latest security patches to affected systems as soon as possible.
2Disable automatic upgrades of Windows Server components until further notice.
3Monitor system logs and event IDs for signs of unexpected upgrades or other suspicious activity.
📦Affected Products
Windows Server 2019Windows Server 2022
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