CVE-2026-93866

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.

CVSS

No CVSS.

References

Link	Resource
https://psirt.watchguard.com/CVE-2026-93866

Configurations

No configuration.

History

27 Oct 2026, 16:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-27 16:17

Updated : 2026-10-28 14:39

NVD link : CVE-2026-93866

Mitre link : CVE-2026-93866

CVE.ORG link : CVE-2026-93866

JSON object : View

Products Affected

No product.

CWE

CWE-190

Integer Overflow or Wraparound

CWE-288

Authentication Bypass Using an Alternate Path or Channel

CWE-787

Out-of-bounds Write

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CVE-2026-93866

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