PT-2026-126647

CVE-2026-93866

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Published

2026-10-27

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Updated

2026-10-27

Description by

CVSS 4.0
9.2
Critical
MetricsAV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
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.
Exploitability
Fix
Impacts
Vendors
Affected products
Weakness enumeration
CWE-190: Integer Overflow or Wraparound
CWE-288: Authentication Bypass Using an Alternate Path or Channel
CWE-787: Out-of-bounds Write
Related identifiers
CVE-2026-93866
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