CVE-2025-0178

WatchGaurd Firebox Host Header Injection Vulnerability

MEDIUM

6.1

CVSS Score

Published: February 14, 2025 at 01:22 PM UTC

Updated: August 8, 2026 at 03:29 AM UTC

28 products affected across 1 vendorFirewareFirebox M4800Firebox T55

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Severity

MEDIUM6.1

Exploit prediction

EPSS 0.2%

SSVC

No known exploit

Description

Improper Input Validation vulnerability in WatchGuard Fireware OS allows an attacker to manipulate the value of the HTTP Host header in requests sent to the Web UI. An attacker could exploit this vulnerability to redirect users to malicious websites, poison the web cache, or inject malicious JavaScript into responses sent by the Web UI. This issue affects Fireware OS: from 12.0 up to and including 12.11.

Affected

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

Fireware · WatchGuard

95%

12.0 ≤ v < 12.11.112.0 ≤ v < 12.5.1312.0.0 ≤ v < 12.11.112.5 ≤ v < 12.5.1312.0

Affected range stops below 12.11.1, so it looks safe — our inference, not a vendor statement

Affected range stops below 12.5.13, so it looks safe — our inference, not a vendor statement

watchguard-firebox-m270 (environment) · watchguard-firebox-m290 (environment) · watchguard-firebox-m370 (environment) · watchguard-firebox-m390 (environment) · watchguard-firebox-m440 (environment) · watchguard-firebox-m4600 (environment) · watchguard-firebox-m470 (environment) · watchguard-firebox-m4800 (environment) · watchguard-firebox-m5600 (environment) · watchguard-firebox-m570 (environment) · watchguard-firebox-m5800 (environment) · watchguard-firebox-m590 (environment) · watchguard-firebox-m670 (environment) · watchguard-firebox-m690 (environment) · watchguard-firebox-nv5 (environment) · watchguard-firebox-t15 (environment) · watchguard-firebox-t20 (environment) · watchguard-firebox-t25 (environment) · watchguard-firebox-t35 (environment) · watchguard-firebox-t40 (environment) · watchguard-firebox-t45 (environment) · watchguard-firebox-t55 (environment) · watchguard-firebox-t70 (environment) · watchguard-firebox-t80 (environment) · watchguard-firebox-t85 (environment) · watchguard-fireboxcloud (environment) · watchguard-fireboxv (environment)

Firebox M270 · WatchGuarddevice

80%

All versions

Firebox M290 · WatchGuarddevice

80%

All versions

Firebox M370 · WatchGuarddevice

80%

All versions

Firebox M390 · WatchGuarddevice

80%

All versions