CVE-2026-3342
HIGH EPSS 50.8%
Published Mar 3, 20263mo ago · Modified Jun 17, 20261w ago
8.6 CVSS 4.0
Published Mar 3, 2026 3mo ago
Last Modified Jun 17, 2026 1w ago
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.
CVSS Details
Base Score
Exploitability
Impact
Vector string
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/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 Attack Vector Network
Attack Complexity Low
Privileges Required High
User Interaction None
Scope X
Threat Intelligence
EPSS Exploit Probability
50.8% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available
Weaknesses 1
CWE-787 Out-of-bounds Write Memory Safety
Affected Products 41
| Vendor | Product | Version | Range |
|---|---|---|---|
| watchguard | fireware | * | ≥12.5 – <12.5.17 |
| watchguard | firebox_t15 | * | any |
| watchguard | firebox_t35 | * | any |
| watchguard | fireware | * | ≥2025.1 – <2026.1.2 |
| watchguard | firebox_m295 | * | any |
| watchguard | firebox_m395 | * | any |
| watchguard | firebox_m495 | * | any |
| watchguard | firebox_m595 | * | any |
| watchguard | firebox_m695 | * | any |
| watchguard | firebox_t115-w | * | any |
| watchguard | firebox_t125 | * | any |
| watchguard | firebox_t125-w | * | any |
| watchguard | firebox_t145 | * | any |
| watchguard | firebox_t145-w | * | any |
| watchguard | firebox_t185 | * | any |
| watchguard | fireware | * | ≥11.9 – <12.11.8 |
| watchguard | firebox_m270 | * | any |
| watchguard | firebox_m290 | * | any |
| watchguard | firebox_m370 | * | any |
| watchguard | firebox_m390 | * | any |
| watchguard | firebox_m440 | * | any |
| watchguard | firebox_m4600 | * | any |
| watchguard | firebox_m470 | * | any |
| watchguard | firebox_m4800 | * | any |
| watchguard | firebox_m5600 | * | any |
| watchguard | firebox_m570 | * | any |
| watchguard | firebox_m5800 | * | any |
| watchguard | firebox_m590 | * | any |
| watchguard | firebox_m670 | * | any |
| watchguard | firebox_m690 | * | any |
| watchguard | firebox_nv5 | * | any |
| watchguard | firebox_t20 | * | any |
| watchguard | firebox_t25 | * | any |
| watchguard | firebox_t40 | * | any |
| watchguard | firebox_t45 | * | any |
| watchguard | firebox_t55 | * | any |
| watchguard | firebox_t70 | * | any |
| watchguard | firebox_t80 | * | any |
| watchguard | firebox_t85 | * | any |
| watchguard | fireboxcloud | * | any |
| watchguard | fireboxv | * | any |
References 1
- watchguard.com https://www.watchguard.com/wgrd-psirt/advisory/wgsa-2026-00003
Remediation
No remediation data recorded yet
Check vendor advisories and the NVD entry for patch availability.