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Not in CISA KEV
HIGH severity

CVE-2026-50414

HIGH

CVE-2026-50414 is a high-severity (CVSS 7.5) CWE-362 vulnerability in microsoft windows 11 24h2. O3 Security detects and blocks CVE-2026-50414 exploitation at runtime via eBPF exploit-chain detection and L7 egress monitoring, even on unpatched systems.

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Media allows an authorized attacker to elevate privileges over a network.

Published
Jul 14, 2026
Updated
Jul 22, 2026
Affected
4 products
Patched
See advisory
Exploits
None indexed
Exploitation data as of Jul 22, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

Description

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Media allows an authorized attacker to elevate privileges over a network.

Affected Products

4 products · 7 configurations
OS
windows 11 24h2microsoft
< 10.0.26100.8875
range
OS
windows 11 25h2microsoft
< 10.0.26200.8875
range
OS
windows 11 26h1microsoft
< 10.0.28000.2525
range
OS
windows server 2025microsoft
< 10.0.26100.33158
range

Detection & mitigation playbook

Vendor / appliance
  1. Detect

    Inventory every microsoft windows 11 24h2 deployment and check each version against the affected-products list above. Because the exploit targets the running system rather than your application code, also watch for exploitation at the network and runtime layer — O3 flags the exploit behaviour from runtime telemetry and egress traffic even before a vulnerable build is confirmed.

  2. Fix

    Apply the microsoft windows 11 24h2 security patch or hotfix for CVE-2026-50414 on the affected version, following the vendor advisory for your exact build.

  3. Workarounds

    Cut exposure now: restrict the management/admin interface to trusted networks, segment the device, and apply the vendor's recommended configuration mitigations and any WAF/IPS signature. O3's runtime protection blocks the exploit chain at execution, holding the line on unpatched or end-of-life systems until you can patch.

  4. How O3 protects you

    O3 detects and blocks CVE-2026-50414 exploitation at runtime: eBPF exploit-chain detection, plus L7 egress monitoring that catches the post-exploitation callback and severs the attacker's outbound channel.

Tailored to CVE-2026-50414. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Media allows an authorized attacker to elevate privileges over a network.
O3 Security · Runtime Protection

Is CVE-2026-50414 being exploited in your environment?

O3's eBPF runtime sensors and L7 egress monitoring detect and block the CVE-2026-50414 exploit chain at execution — protecting unpatched and end-of-life systems until the vendor patch is applied.