CVE-2023-28302
HIGHCVE-2023-28302 is a high-severity (CVSS 7.5) Improper Input Validation vulnerability in microsoft windows 10 20h2. O3 Security detects and blocks CVE-2023-28302 exploitation at runtime via eBPF exploit-chain detection and L7 egress monitoring, even on unpatched systems.
Microsoft Message Queuing (MSMQ) Denial of Service Vulnerability
Description
Microsoft Message Queuing (MSMQ) Denial of Service Vulnerability
Affected Products
windows 10 20h2microsoftwindows 10 21h2microsoftwindows 10 22h2microsoftwindows 10 1607microsoftwindows 10 1809microsoftwindows 11 21h2microsoftDetection & mitigation playbook
Vendor / applianceDetect
Inventory every microsoft windows 10 20h2 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.
Fix
Apply the microsoft windows 10 20h2 security patch or hotfix for CVE-2023-28302 on the affected version, following the vendor advisory for your exact build.
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.
How O3 protects you
O3 detects and blocks CVE-2023-28302 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-2023-28302. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.
Frequently Asked Questions
Is CVE-2023-28302 being exploited in your environment?
O3's eBPF runtime sensors and L7 egress monitoring detect and block the CVE-2023-28302 exploit chain at execution — protecting unpatched and end-of-life systems until the vendor patch is applied.