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Vulnerabilities

CVE-2026-93862 | BDVDB-2026-396286 Detail

WatchGuardFireware OS

Description#

An out-of-bounds read 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 repeatedly crash the firewall's cluster synchronization process by sending specially crafted network traffic, resulting in a sustained denial of service.

Impact#

Per CVSS v4.0: confidentiality impact low, integrity impact low, availability impact high. Attack vector: adjacent.

Weaknesses#

References#

Exploit#

No public exploit known

History#

  1. Version 1Record published in the CVE List.
  2. Version 2Most recent update recorded in the CVE List.