CVE tracker / CVE-2025-26639

CVE-2025-26639

CVE-2025-26639 is the Windows USB Print Driver Elevation of Privilege Vulnerability. Microsoft rates it Important, CVSS 7.8. It is not in CISA's Known Exploited Vulnerabilities catalog. Published April 8, 2025.

Risk summary

HighElevation of Privilege
7.8
CVSS v3 base
0.6%
EPSS: chance of exploitation in 30 days
High
Severity
Important
Microsoft's rating
Less Likely
Microsoft: exploitation
No
In CISA KEV

Microsoft describes it: “Integer overflow or wraparound in Windows USB Print Driver allows an authorized attacker to elevate privileges locally.”

How to fix it

Microsoft lists 17 affected products and the update that fixes each:

What Microsoft changed

Details

Weakness
CWE-190: Integer Overflow or Wraparound
Publicly disclosed (Microsoft)
No
Exploited (Microsoft)
No
Known exploited (CISA KEV)
Not listed
Published
April 8, 2025
Last revised
April 8, 2025

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References

Microsoft Security Update Guide NVD CVE record CWE

From Microsoft, CISA, NVD and FIRST data; the Microsoft details were read when this page was opened. Check the references above before you act.