CVE-2022-26318WatchGuard Firebox and XTM Appliances Arbitrary Code Execution

On WatchGuard Firebox and XTM appliances, an unauthenticated user can execute arbitrary code, aka FBX-22786. This vulnerability impacts Fireware OS before 12.7.2_U2, 12.x before 12.1.3_U8, and 12.2.x through 12.5.x before 12.5.9_U2.

9.8 CRITICALEPSS 78.15%⚡ Known Exploited (CISA KEV)NVD: Analyzed

Last updated: 2026-06-17 04:34 UTC

OverviewCVSS details

9.8CRITICALCVSS 3.1

Score source: NVD
NVD status: Analyzed
Published: Mar 4, 2022
Assigner: mitre

Affected

fireware (watchguard)

Versions: 12.0.0 before 12.1.3 · 12.5 before 12.5.9
Fixed in: 12.1.3, 12.5.9, 12.7.2

All affected versions →

Exploitation

Public exploit: None listed
CISA KEV: Listed · Mar 25, 2022
KEV due date: Apr 15, 2022
Ransomware use: Unknown
SSVC: Exploitation active · Automatable yes · Impact total

EPSS · FIRST, scored Nov 7

78.15%chance of exploitation in 30 days

Higher than 99.58% of CVEs

CVSS 3.1 · NVD

9.8Critical

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack vector: Network
Attack complexity: Low
Privileges required: None
User interaction: None
Scope: Unchanged
Confidentiality impact: High
Integrity impact: High
Availability impact: High

CVSS 2.0 · NVD

7.5High

AV:N/AC:L/Au:N/C:P/I:P/A:P

Attack vector: Network
Attack complexity: Low
Authentication: None
Confidentiality impact: Partial
Integrity impact: Partial
Availability impact: Partial

NVD status: Analyzed

Overview Affected Products References

NVD CVE.org

Overview

Severity

Score	Severity	Version	Vector String
9.8	CRITICAL	3.1NVD	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
7.5	HIGH	2.0NVD	AV:N/AC:L/Au:N/C:P/I:P/A:P

CISA required action

⚡ Known exploited · remediation due Apr 15, 2022

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Details

CVE ID: CVE-2022-26318
Status: Analyzed
Assigner (CNA): mitre
Published: Mar 4, 2022
Last modified: 2026-06-17 04:34 UTC
Weaknesses: CWE-122

Sources

Refreshed hourly from the sources above. Last fetched 2026-11-08 13:15 UTC.