Watchguard: >> Fireware >> 12.6.3 Security Vulnerabilities
Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in WatchGuard Fireware OS (Autotask Technology Integration module) allows Stored XSS.
CVSS Score
4.8
EPSS Score
0.002
Published
2025-12-04
A memory corruption vulnerability in WatchGuard Fireware OS may allow an unauthenticated attacker to trigger a Denial of Service (DoS) condition in the Mobile User VPN with IKEv2 and the Branch Office VPN using IKEv2 when configured with a dynamic gateway peer.
CVSS Score
8.7
EPSS Score
0.005
Published
2025-12-04
An Out-of-bounds Write vulnerability in WatchGuard Fireware OS’s certificate request command could allow an authenticated privileged user to execute arbitrary code via specially crafted CLI commands.
CVSS Score
8.6
EPSS Score
0.004
Published
2025-12-04
An Out-of-bounds Write vulnerability in WatchGuard Fireware OS's CLI could allow an authenticated privileged user to execute arbitrary code via specially crafted IPSec configuration CLI commands.
CVSS Score
8.6
EPSS Score
0.007
Published
2025-12-04
CVE-2025-9242
An Out-of-bounds Write vulnerability in the WatchGuard Fireware OS iked process may allow a remote unauthenticated attacker to execute arbitrary code. This vulnerability affects both the mobile user VPN with IKEv2 and the branch office VPN using IKEv2 when configured with a dynamic gateway peer.
If the Firebox was previously configured with the mobile user VPN with IKEv2 or a branch office VPN using IKEv2 to a dynamic gateway peer, and both of those configurations have since been deleted, that Firebox may still be vulnerable if a branch office VPN to a static gateway peer is still configured.
Known exploited
CVSS Score
9.3
EPSS Score
0.913
Published
2025-09-17
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.
CVSS Score
5.1
EPSS Score
0.002
Published
2025-02-14
A stored cross-site scripting (XSS) vulnerability exists in the management interface of WatchGuard Firebox appliances via the spamBlocker module. An authenticated remote attacker with administrator privileges could exploit this vulnerability to execute arbitrary JavaScript code in the Firebox management interface of another management user.
CVSS Score
4.8
EPSS Score
0.003
Published
2025-02-14
A buffer overflow in WatchGuard Fireware OS could may allow an authenticated remote attacker with privileged management access to execute arbitrary code with system privileges on the firewall.
This issue affects Fireware OS: from 11.9.6 through 12.10.3.
CVSS Score
8.6
EPSS Score
0.01
Published
2024-07-09
An integer overflow in WatchGuard Firebox and XTM appliances allows an unauthenticated remote attacker to trigger a buffer overflow and potentially execute arbitrary code by sending a malicious request to exposed management ports. This is fixed in Fireware OS 12.8.1, 12.5.10, and 12.1.4.
CVSS Score
9.8
EPSS Score
0.015
Published
2022-09-06
WatchGuard Firebox and XTM appliances allow a local attacker (that has already obtained shell access) to elevate their privileges and execute code with root permissions. This is fixed in Fireware OS 12.8.1, 12.5.10, and 12.1.4.
CVSS Score
7.8
EPSS Score
0.002
Published
2022-09-06