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Vulnerability record · CVE-2026-57909 · published 25 August 2026

CVE-2026-57909: Code injection vulnerability

A path traversal vulnerability in WatchGuard Agent allows a remote, unauthenticated attacker on an adjacent network to execute arbitrary code on an affected system.

9.4 CVSS 4.0 Critical EPSS 0.41% · top 67.6% CWE-94 · Code injectionCWE-306 · Missing authentication for critical function Deferred
9.4CVSS 4.0 base score
0.41%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
1References
28 Aug 2026Last modified by NVD

Description

A path traversal vulnerability in WatchGuard Agent allows a remote, unauthenticated attacker on an adjacent network to execute arbitrary code on an affected system.

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:

References

LinkTags
https://psirt.watchguard.com/CVE-2026-57909

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Source: NIST National Vulnerability Database (record CVE-2026-57909), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.