Microsoft: >> Windows 10 21h2 Security Vulnerabilities
Use after free in Reliable Multicast Transport Driver (RMCAST) allows an unauthorized attacker to execute code over a network.
CVSS Score
8.1
EPSS Score
0.006
Published
2026-07-14
Use of uninitialized resource in Windows SMB allows an authorized attacker to disclose information locally.
CVSS Score
5.5
EPSS Score
0.003
Published
2026-07-14
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows TCP/IP allows an unauthorized attacker to execute code over an adjacent network.
CVSS Score
8.8
EPSS Score
0.003
Published
2026-07-14
Heap-based buffer overflow in Windows Win32K allows an authorized attacker to elevate privileges locally.
CVSS Score
7.8
EPSS Score
0.019
Published
2026-07-14
Heap-based buffer overflow in Windows Overlay Filter allows an authorized attacker to elevate privileges locally.
CVSS Score
7.8
EPSS Score
0.002
Published
2026-07-14
Use after free in Quality Windows Audio/Video Experience (QWAVE) service allows an authorized attacker to elevate privileges locally.
CVSS Score
7.0
EPSS Score
0.002
Published
2026-07-14
Heap-based buffer overflow in Windows Message Queuing Queue Manager allows an unauthorized attacker to execute code locally.
CVSS Score
8.4
EPSS Score
0.005
Published
2026-07-14
Use after free in Windows Hyper-V allows an authorized attacker to elevate privileges locally.
CVSS Score
7.0
EPSS Score
0.002
Published
2026-07-14
Heap-based buffer overflow in Windows Kernel allows an unauthorized attacker to elevate privileges with a physical attack.
CVSS Score
6.8
EPSS Score
0.003
Published
2026-07-14
Integer underflow (wrap or wraparound) in Reliable Multicast Transport Driver (RMCAST) allows an unauthorized attacker to execute code over an adjacent network.
CVSS Score
8.8
EPSS Score
0.004
Published
2026-07-14