Critical severityNVD Advisory· Published Oct 27, 2026
CVE-2026-93866
CVE-2026-93866
Description
An integer overflow vulnerability in the WebSocket connection handling used by WatchGuard Fireware OS's Access Portal allows a remote, unauthenticated attacker to write beyond the bounds of a heap buffer by sending a specially crafted request while the Access Portal feature is enabled.
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Affected products
1Patches
Vulnerability mechanics
References
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