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CVE-2026-90442

Fireware OS Authenticated Stack Buffer Overflow in certd Allows Denial of Service

HIGH
8.6
CVSS Score
Published: October 27, 2026 at 03:52 PM UTC
Updated: October 28, 2026 at 02:39 PM UTC
1 product affected across 1 vendorFireware

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Severity
HIGH8.6
Exploit prediction
EPSS 0.2%

Description

A stack-based buffer overflow vulnerability in the Fireware OS certd process allows an authenticated attacker with access to the Firebox management interface to crash the certificate management service and potentially execute arbitrary code by sending a specially crafted request.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

Vendor Advisory
Source: cverecord
https://psirt.watchguard.com/CVE-2026-90442

CVSS

8.6HIGHWatchGuard
Vector?

Quick Info

StatusAWAITING ANALYSIS
CWE
CWE-121CWE-787

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