UpHeron
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Servers and applications

CVE-2026-103593

Fireware OS Stack Buffer Overflow in Logging Service Allows Remote Code Execution

Severity
Critical 9.1
Published
27 Oct 2026
Last changed
29 Oct 2026
Added to UpHeron
3 Nov 2026
Fixed in
12.5.22, 12.12.4, 2026.4
Sources
CVE Program

Affected software

SoftwareAffected versions
WatchGuard Fireware OSServers and applications · cna:watchguard|fireware os
  • From 12.0 before 12.5.22
  • From 12.12 before 12.12.4
  • From 2025.1 before 2026.4

References

  • CVE.org https://www.cve.org/CVERecord?id=CVE-2026-103593