CVE-2026-3342— WatchGuard Firebox Out of Bounds Write Vulnerability
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I. Basic Information for CVE-2026-3342
Vulnerability Information
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Vulnerability Title
WatchGuard Firebox Out of Bounds Write Vulnerability
Source: NVD (National Vulnerability Database)
Vulnerability Description
An Out-of-bounds Write vulnerability in WatchGuard Fireware OS may allow an authenticated privileged administrator to execute arbitrary code with root permissions via an exposed management interface. This vulnerability affects Fireware OS 11.9 up to and including 11.12.4_Update1, 12.0 up to and including 12.11.7 and 2025.1 up to and including 2026.1.1.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
跨界内存写
Source: NVD (National Vulnerability Database)
Vulnerability Title
WatchGuard Fireware OS 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
WatchGuard Fireware OS是美国WatchGuard公司的一个在 Firebox 上运行的软件。 WatchGuard Fireware OS 11.9至11.12.4_Update1版本、12.0至12.11.7版本和2025.1至2026.1.1版本存在安全漏洞，该漏洞源于越界写入，可能导致经过身份验证的特权管理员通过暴露的管理界面以root权限执行任意代码。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| WatchGuard | Fireware OS | 11.9 ~ 11.12.4+541730 | - |
II. Public POCs for CVE-2026-3342
| # | POC Description | Source Link | Shenlong Link |
|---|
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Same Patch Batch · WatchGuard · 2026-03-03 · 3 CVEs total
| CVE-2026-3344 | WatchGuard Firebox System Integrity Check Bypass | |
| CVE-2026-3343 | WatchGuard Firebox Reflected Cross-Site-Scripting (XSS) Vulnerability in Fireware Web UI |
IV. Related Vulnerabilities
Same product: Fireware OS
- CVE-2026-3987
WatchGuard Firebox Arbitrary File Write vis Path Traversal i - CVE-2026-4315
WatchGuard Firebox Cross-Site Request Forgery (CSRF) in Fire - CVE-2026-4266
WatchGuard Firebox Insecure Deserialization in Fireware Acce - CVE-2026-3344
WatchGuard Firebox System Integrity Check Bypass - CVE-2026-3343
WatchGuard Firebox Reflected Cross-Site-Scripting (XSS) Vuln
Same vendor: WatchGuard
- CVE-2026-6788
Uncontrolled search path in PluginLauncher allows SYSTEM cod - CVE-2026-6787
Usage of a hard-coded cryptographic key in WatchGuard Agent - CVE-2026-41288
WatchGuard Agent on Windows Privilege Escalation Vulnerabili - CVE-2026-41287
Stack-based Buffer Overflow in WatchGuard Agent Discovery Se - CVE-2026-3987
WatchGuard Firebox Arbitrary File Write vis Path Traversal i
V. Comments for CVE-2026-3342
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