May 2026: Windows Print Spooler Elevation of Privilege Vulnerability
CVE-2026-34342 Published on May 12, 2026
Windows Print Spooler Elevation of Privilege Vulnerability
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Print Spooler Components allows an authorized attacker to elevate privileges locally.
Weakness Type
What is a Race Condition Vulnerability?
The program contains a code sequence that can run concurrently with other code, and the code sequence requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence that is operating concurrently.
CVE-2026-34342 has been classified to as a Race Condition vulnerability or weakness.
Products Associated with CVE-2026-34342
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Affected Versions
Microsoft Windows 10 Version 1607:- Version 10.0.14393.0 and below 10.0.14393.9140 is affected.
- Version 10.0.17763.0 and below 10.0.17763.8755 is affected.
- Version 10.0.19044.0 and below 10.0.19044.7291 is affected.
- Version 10.0.19045.0 and below 10.0.19045.7291 is affected.
- Version 10.0.22631.0 and below 10.0.22631.7079 is affected.
- Version 10.0.22631.0 and below 10.0.22631.7079 is affected.
- Version 10.0.26100.0 and below 10.0.26100.8457 is affected.
- Version 10.0.26200.0 and below 10.0.26200.8457 is affected.
- Version 10.0.28000.0 and below 10.0.28000.2113 is affected.
- Version 6.2.9200.0 and below 6.2.9200.26079 is affected.
- Version 6.2.9200.0 and below 6.2.9200.26079 is affected.
- Version 6.3.9600.0 and below 6.3.9600.23181 is affected.
- Version 6.3.9600.0 and below 6.3.9600.23181 is affected.
- Version 10.0.14393.0 and below 10.0.14393.9140 is affected.
- Version 10.0.14393.0 and below 10.0.14393.9140 is affected.
- Version 10.0.17763.0 and below 10.0.17763.8755 is affected.
- Version 10.0.17763.0 and below 10.0.17763.8755 is affected.
- Version 10.0.20348.0 and below 10.0.20348.5139 is affected.
- Version 10.0.25398.0 and below 10.0.25398.2330 is affected.
- Version 10.0.26100.0 and below 10.0.26100.32860 is affected.
- Version 10.0.26100.0 and below 10.0.26100.32860 is affected.