CVE-2025-62215 Microsoft Windows: software flaw
In plain words: A mistake in the software that attackers have found a way to abuse. Depends on the product — see the description and the vendor advisory.
Confirmed exploited by CISA on · US federal patch deadline Dec 3, 2025
What to do
- Install Microsoft's security update for Windows. If no update exists, follow the vendor's workaround or stop using the product until one ships.
- Turn on automatic updates for the operating system and for Office, PDF and archive apps.
- Be careful with unexpected attachments — documents, .zip/.rar files and shortcuts are common bait.
- Use a normal (non-admin) account day to day and keep built-in protection like Microsoft Defender on.
Who is affected
Could reach you. This one is aimed at devices or apps of the kind people own.
What's at risk: Your files, saved passwords and accounts. Many of these let a program that is already running gain full administrator control.
The details
- Official name
- Microsoft Windows Race Condition Vulnerability
- Product
- Microsoft Windows
- CISA description
- Microsoft Windows Kernel contains a race condition vulnerability that allows a local attacker with low-level privileges to escalate privileges. Successful exploitation of this vulnerability could enable the attacker to gain SYSTEM-level access.
- Type of flaw
- Software flaw (CWE-362)
- Confirmed exploited
- Nov 12, 2025
- US federal patch deadline
- Dec 3, 2025
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Answering about CVE-2025-62215 ·
Questions about CVE-2025-62215
Is CVE-2025-62215 being exploited?
Yes. CISA added CVE-2025-62215 to its Known Exploited Vulnerabilities catalog on Nov 12, 2025, which means there is reliable evidence of real-world attacks.
How do I fix CVE-2025-62215?
Install Microsoft's security update for Windows. If no update exists, follow the vendor's workaround or stop using the product until one ships. Turn on automatic updates for the operating system and for Office, PDF and archive apps.
Am I affected by CVE-2025-62215?
Only if you use Microsoft Windows. This one is aimed at devices or apps of the kind people own.