CVE-2025-0178

WatchGaurd Firebox Host Header Injection Vulnerability

At a glance

Severity: MEDIUM 5.1
EPSS: EPSS 0.24 % · percentile 15 (2026-10-27)
State: PUBLISHED
Published: 2025-02-14
Updated: 2026-08-08
Assigner: WatchGuard
NVD status: Modified

Description

An Improper Input Validation vulnerability in WatchGuard Fireware OS allows an attacker with network access 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.

Scores

Version	Score	Vector	Scored by
CVSS 4.0	MEDIUM 5.1	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:N/VA:N/SC:L/SI:L/SA:L	WatchGuard
CVSS 4.0	MEDIUM 5.1	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:N/VA:N/SC:L/SI:L/SA:L/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:X/V:X/RE:X/U:X	NVD · 5d1c2695-1a31-4499-88ae-e847036fd7e3 (Secondary)
CVSS 3.1	MEDIUM 6.1	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N	NVD · nvd@nist.gov (Primary)

Weaknesses (CWE)

CWE-20

European references

ENISA EUVD · EUVD-2025-1528
GCVE · GCVE-0-2025-0178

Affected configurations (NVD CPE)

cpe:2.3:o:watchguard:fireware:*:*:*:*:*:*:*:* ≥ 12.0.0 < 12.11.1
cpe:2.3:o:watchguard:fireware:*:*:*:*:*:*:*:* ≥ 12.5 < 12.5.13

Affected products

Product	Versions
WatchGuard · Fireware OS	affected 12.0 < 12.11.1
WatchGuard · Fireware OS	affected 12.0 < 12.5.13

References

Sources

Source	Licence
CVE List (CVEProject cvelistV5)	CVE Program Terms of Use
EPSS (FIRST.org)	FIRST — attribution requested
ENISA EUVD	ENISA — reproduction authorised, source acknowledged
NVD (NIST) via fkie-cad/nvd-json-data-feeds	Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD