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CVE-2026-103594

9.5 critical Awaiting Analysis
NVD · CVE.org

A stack-based buffer overflow vulnerability in Fireware OS's WireGuard configuration processing allows a remote attacker that has man-in-the-middle TLS-decrypted access between the Firebox and WatchGuard Cloud to create a Denial of Service condition and potentially execute arbitrary code by tampering with a FireCloud Gateway configuration payload.

Fix

Nothing published yet: no patch, vendor advisory or mitigation reference on NVD, no vendor advisory in the News for this CVE, not in CISA's KEV, no fixed package version. BaselineWatch does not guess at one.

Change history 5

  1. StatusPublished → Awaiting AnalysisNVD modified 2026-10-28 14:39
  2. StatusReceived → PublishedNVD modified 2026-10-27 15:52
  3. StatusPublished → ReceivedNVD modified 2026-10-27 16:17
  4. CVSS9.5 (v4.0, CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H) → 9.5 (v4.0, CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X)NVD modified 2026-10-27 16:17
  5. First seenCVSS 9.5 · watchguardNVD modified 2026-10-27 15:52

Affected (CPE criteria) 0

NVD has not attached CPE configurations yet.

References 1