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Vulnerabilities

Vulnerable Software

Vulnerability Details CVE-2026-3343

A reflected cross-site scripting (XSS) vulnerability in the Fireware OS Web UI enabled execution of malicious JavaScript in the context of an authenticated management user's browser when they click on a specially crafted link.

Exploit prediction scoring system (EPSS) score

EPSS Score 0.002

EPSS Ranking 10.9%

CVSS Severity

CVSS v3 Score 6.1

References

Products affected by CVE-2026-3343

Watchguard » Firebox M270 » Version: N/A

cpe:2.3:h:watchguard:firebox_m270:-
Watchguard » Firebox M290 » Version: N/A

cpe:2.3:h:watchguard:firebox_m290:-
Watchguard » Firebox M295 » Version: N/A

cpe:2.3:h:watchguard:firebox_m295:-
Watchguard » Firebox M370 » Version: N/A

cpe:2.3:h:watchguard:firebox_m370:-
Watchguard » Firebox M390 » Version: N/A

cpe:2.3:h:watchguard:firebox_m390:-
Watchguard » Firebox M395 » Version: N/A

cpe:2.3:h:watchguard:firebox_m395:-
Watchguard » Firebox M440 » Version: N/A

cpe:2.3:h:watchguard:firebox_m440:-
Watchguard » Firebox M4600 » Version: N/A

cpe:2.3:h:watchguard:firebox_m4600:-
Watchguard » Firebox M470 » Version: N/A

cpe:2.3:h:watchguard:firebox_m470:-
Watchguard » Firebox M4800 » Version: N/A

cpe:2.3:h:watchguard:firebox_m4800:-
Watchguard » Firebox M495 » Version: N/A

cpe:2.3:h:watchguard:firebox_m495:-
Watchguard » Firebox M5600 » Version: N/A

cpe:2.3:h:watchguard:firebox_m5600:-
Watchguard » Firebox M570 » Version: N/A

cpe:2.3:h:watchguard:firebox_m570:-
Watchguard » Firebox M5800 » Version: N/A

cpe:2.3:h:watchguard:firebox_m5800:-
Watchguard » Firebox M590 » Version: N/A

cpe:2.3:h:watchguard:firebox_m590:-
Watchguard » Firebox M595 » Version: N/A

cpe:2.3:h:watchguard:firebox_m595:-
Watchguard » Firebox M670 » Version: N/A

cpe:2.3:h:watchguard:firebox_m670:-
Watchguard » Firebox M690 » Version: N/A

cpe:2.3:h:watchguard:firebox_m690:-
Watchguard » Firebox M695 » Version: N/A

cpe:2.3:h:watchguard:firebox_m695:-
Watchguard » Firebox Nv5 » Version: N/A

cpe:2.3:h:watchguard:firebox_nv5:-
Watchguard » Firebox T115-W » Version: N/A

cpe:2.3:h:watchguard:firebox_t115-w:-
Watchguard » Firebox T125-W » Version: N/A

cpe:2.3:h:watchguard:firebox_t125-w:-
Watchguard » Firebox T125 » Version: N/A

cpe:2.3:h:watchguard:firebox_t125:-
Watchguard » Firebox T145-W » Version: N/A

cpe:2.3:h:watchguard:firebox_t145-w:-
Watchguard » Firebox T145 » Version: N/A

cpe:2.3:h:watchguard:firebox_t145:-
Watchguard » Firebox T185 » Version: N/A

cpe:2.3:h:watchguard:firebox_t185:-
Watchguard » Firebox T20 » Version: N/A

cpe:2.3:h:watchguard:firebox_t20:-
Watchguard » Firebox T25 » Version: N/A

cpe:2.3:h:watchguard:firebox_t25:-
Watchguard » Firebox T40 » Version: N/A

cpe:2.3:h:watchguard:firebox_t40:-
Watchguard » Firebox T45 » Version: N/A

cpe:2.3:h:watchguard:firebox_t45:-
Watchguard » Firebox T55 » Version: N/A

cpe:2.3:h:watchguard:firebox_t55:-
Watchguard » Firebox T70 » Version: N/A

cpe:2.3:h:watchguard:firebox_t70:-
Watchguard » Firebox T80 » Version: N/A

cpe:2.3:h:watchguard:firebox_t80:-
Watchguard » Firebox T85 » Version: N/A

cpe:2.3:h:watchguard:firebox_t85:-
Watchguard » Fireboxcloud » Version: N/A

cpe:2.3:h:watchguard:fireboxcloud:-
Watchguard » Fireboxv » Version: N/A

cpe:2.3:h:watchguard:fireboxv:-
Watchguard » Fireware » Version: 12.10

cpe:2.3:o:watchguard:fireware:12.10
Watchguard » Fireware » Version: 12.10.1

cpe:2.3:o:watchguard:fireware:12.10.1
Watchguard » Fireware » Version: 12.10.2

cpe:2.3:o:watchguard:fireware:12.10.2
Watchguard » Fireware » Version: 12.10.3

cpe:2.3:o:watchguard:fireware:12.10.3
Watchguard » Fireware » Version: 12.10.4

cpe:2.3:o:watchguard:fireware:12.10.4
Watchguard » Fireware » Version: 12.11

cpe:2.3:o:watchguard:fireware:12.11
Watchguard » Fireware » Version: 12.11.1

cpe:2.3:o:watchguard:fireware:12.11.1
Watchguard » Fireware » Version: 12.11.2

cpe:2.3:o:watchguard:fireware:12.11.2
Watchguard » Fireware » Version: 12.11.3

cpe:2.3:o:watchguard:fireware:12.11.3
Watchguard » Fireware » Version: 12.11.4

cpe:2.3:o:watchguard:fireware:12.11.4
Watchguard » Fireware » Version: 12.11.5

cpe:2.3:o:watchguard:fireware:12.11.5
Watchguard » Fireware » Version: 12.11.6

cpe:2.3:o:watchguard:fireware:12.11.6
Watchguard » Fireware » Version: 12.7.0

cpe:2.3:o:watchguard:fireware:12.7.0
Watchguard » Fireware » Version: 12.7.1

cpe:2.3:o:watchguard:fireware:12.7.1
Watchguard » Fireware » Version: 12.7.2

cpe:2.3:o:watchguard:fireware:12.7.2
Watchguard » Fireware » Version: 12.8.0

cpe:2.3:o:watchguard:fireware:12.8.0
Watchguard » Fireware » Version: 12.8.1

cpe:2.3:o:watchguard:fireware:12.8.1
Watchguard » Fireware » Version: 12.8.2

cpe:2.3:o:watchguard:fireware:12.8.2
Watchguard » Fireware » Version: 12.8.3

cpe:2.3:o:watchguard:fireware:12.8.3
Watchguard » Fireware » Version: 12.9

cpe:2.3:o:watchguard:fireware:12.9
Watchguard » Fireware » Version: 12.9.2

cpe:2.3:o:watchguard:fireware:12.9.2
Watchguard » Fireware » Version: 12.9.3

cpe:2.3:o:watchguard:fireware:12.9.3
Watchguard » Fireware » Version: 12.9.4

cpe:2.3:o:watchguard:fireware:12.9.4
Watchguard » Fireware » Version: 2025.1

cpe:2.3:o:watchguard:fireware:2025.1
Watchguard » Fireware » Version: 2025.1.1

cpe:2.3:o:watchguard:fireware:2025.1.1
Watchguard » Fireware » Version: 2025.1.2

cpe:2.3:o:watchguard:fireware:2025.1.2
Watchguard » Fireware » Version: 2025.1.3

cpe:2.3:o:watchguard:fireware:2025.1.3
Watchguard » Fireware » Version: 2025.1.4

cpe:2.3:o:watchguard:fireware:2025.1.4

Vulnerabilities

Vulnerable Software

Vulnerability Details CVE-2026-3343

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