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Vulnerability record · CVE-2026-19315 · published 28 August 2026

CVE-2026-19315: Out-of-bounds read vulnerability

A type confusion vulnerability in the iked process of WatchGuard Fireware OS allows a remote unauthenticated attacker to execute arbitrary code by sending specially crafted network traffic.

9.3 CVSS 4.0 Critical EPSS 0.46% · top 62.8% CWE-125 · Out-of-bounds readCWE-763 · CWE-763 Deferred
9.3CVSS 4.0 base score
0.46%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
1References
3 Sep 2026Last modified by NVD

Description

A type confusion vulnerability in the iked process of WatchGuard Fireware OS allows a remote unauthenticated attacker to execute arbitrary code by sending specially crafted network traffic.

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/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-2026-19315

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2026-19315), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.