CVE-2026-90465

critical · 9.4

A missing authentication vulnerability in the FireCluster Sync processing allows an attacker positioned on the cluster interconnect, such as a compromised cluster peer or an on-path network attacker, to invoke privileged firewall management actions as root by sending a specially crafted request.

9.4

CVSS

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EPSS (exploit prob.)

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EPSS percentile

2026-10-27

Published

CVSS:4.0/AV:A/AC:L/AT:N/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

Weaknesses

CWE-77CWE-290CWE-306CWE-862

References

https://psirt.watchguard.com/CVE-2026-90465

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2026-90465