Sep 2026: Windows Print Spooler Components Elevation of Privilege Vulnerability
CVE-2026-69309 Published on September 8, 2026
Windows Print Spooler Components Elevation of Privilege Vulnerability
Double free in Windows Print Spooler Components allows an authorized attacker to elevate privileges locally.
Weakness Type
What is a Double-free Vulnerability?
The product calls free() twice on the same memory address, potentially leading to modification of unexpected memory locations. When a program calls free() twice with the same argument, the program's memory management data structures become corrupted. This corruption can cause the program to crash or, in some circumstances, cause two later calls to malloc() to return the same pointer. If malloc() returns the same value twice and the program later gives the attacker control over the data that is written into this doubly-allocated memory, the program becomes vulnerable to a buffer overflow attack.
CVE-2026-69309 has been classified to as a Double-free vulnerability or weakness.
Products Associated with CVE-2026-69309
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Affected Versions
Microsoft Windows 10 Version 1607:- Version 10.0.14393.0 and below 10.0.14393.9512 is affected.
- Version 10.0.17763.0 and below 10.0.17763.9245 is affected.
- Version 10.0.19044.0 and below 10.0.19044.7725 is affected.
- Version 10.0.19045.0 and below 10.0.19045.7725 is affected.
- Version 10.0.22631.0 and below 10.0.22631.7582 is affected.
- Version 10.0.22631.0 and below 10.0.22631.7582 is affected.
- Version 10.0.26100.0 and below 10.0.26100.9445 is affected.
- Version 10.0.26200.0 and below 10.0.26200.9445 is affected.
- Version 10.0.28000.0 and below 10.0.28000.2954 is affected.
- Version 6.2.9200.0 and below 6.2.9200.26349 is affected.
- Version 6.2.9200.0 and below 6.2.9200.26349 is affected.
- Version 6.3.9600.0 and below 6.3.9600.23397 is affected.
- Version 6.3.9600.0 and below 6.3.9600.23397 is affected.
- Version 10.0.14393.0 and below 10.0.14393.9512 is affected.
- Version 10.0.14393.0 and below 10.0.14393.9512 is affected.
- Version 10.0.17763.0 and below 10.0.17763.9245 is affected.
- Version 10.0.17763.0 and below 10.0.17763.9245 is affected.
- Version 10.0.20348.0 and below 10.0.20348.5622 is affected.
- Version 10.0.26100.0 and below 10.0.26100.33438 is affected.
- Version 10.0.26100.0 and below 10.0.26100.33438 is affected.