CVE-2023-26236

Severity: high (CVSS 7.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2023-10-05 · updated 2026-06-17
Weakness: CWE-269

Description

An issue was discovered in WatchGuard EPDR 8.0.21.0002. Due to a weak implementation of message handling between WatchGuard EPDR processes, it is possible to perform a Local Privilege Escalation on Windows by sending a crafted message to a named pipe.

Affected products

WatchGuard Edr Firmware: before 8.00.22.0010 — fixed in 8.00.22.0010
WatchGuard Epdr Firmware: before 8.00.22.0010 — fixed in 8.00.22.0010
WatchGuard Epp Firmware: before 8.00.22.0010 — fixed in 8.00.22.0010
WatchGuard Panda Ad360 Firmware: before 8.00.22.0010 — fixed in 8.00.22.0010

How to fix

Upgrade to a fixed version: WatchGuard Edr Firmware 8.00.22.0010; WatchGuard Epdr Firmware 8.00.22.0010; WatchGuard Epp Firmware 8.00.22.0010; WatchGuard Panda Ad360 Firmware 8.00.22.0010. Check the vendor advisory for mitigations.

References

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