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Exploited vulnerability · CISA KEV

Is CVE-2025-62215 exploited? Yes: in CISA KEV since 12 Nov 2025

Gociux · Microsoft Windows · data: CISA KEV, CVE record, FIRST EPSS

Yes. CVE-2025-62215, Microsoft Windows Race Condition Vulnerability, is being exploited in the wild. CISA added it to its Known Exploited Vulnerabilities catalog on 12 Nov 2025, 1 days after it was published. It affects Microsoft Windows. If you run it, CISA's required action is: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

exploitedYesCISA KEV · 12 Nov 2025
ransomwareNot knownno confirmed use
EPSStop 10%more likely than most to be exploited
severity7CVSS 3.1 · high
US federal due3 Dec 2025BOD 22-01 deadline

What it is

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.

VendorMicrosoft (391 exploited CVEs in KEV)
ProductWindows
VulnerabilityMicrosoft Windows Race Condition Vulnerability
WeaknessCWE-362
Published11 Nov 2025
Added to KEV12 Nov 2025
Reported by (CNA)microsoft

What to do

  1. Check whether you run it. Look for Windows in your asset inventory, including appliances and cloud images. Stack check lists every exploited Microsoft CVE at once.
  2. Apply the fix. Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
  3. If you can't patch today, take the affected service off the internet or restrict who can reach it, and check its logs for signs of compromise since 11 Nov 2025.
  4. Get told next time. Email alerts when CISA adds a CVE for Microsoft.

Other exploited CVEs in Windows

References

Questions

Is CVE-2025-62215 being exploited?

Yes. CISA added CVE-2025-62215 to the Known Exploited Vulnerabilities catalog on 12 Nov 2025, which means there is reliable evidence of exploitation in the wild.

Is CVE-2025-62215 used in ransomware attacks?

CISA does not list known ransomware use for it. That can change, and exploitation alone is reason to fix it first.

How do I fix CVE-2025-62215?

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable. Check Microsoft's advisory for the fixed versions, and if you can't patch quickly, restrict access to the affected Windows and watch it for signs of compromise.

Sources: CISA KEV (exploitation, ransomware use, required action, due date), the CVE record (publication date, CVSS, CNA), NVD and FIRST EPSS (live score). More: all KEV additions in November 2025 · Microsoft scorecard · act-now radar.

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