CVE-2026-13384
published 2026-07-03CVE-2026-13384: An Out-of-bounds Write vulnerability in WatchGuard Fireware OS wgagent process could allow an authenticated privileged user to execute arbitrary code via a…
PriorityP348high7.2CVSS 3.1
AVNACLPRHUINSUCHIHAH
EPSS
0.72%
52.6th percentile
An Out-of-bounds Write vulnerability in WatchGuard Fireware OS wgagent process could allow an authenticated privileged user to execute arbitrary code via a specially crafted requests to the Management Web UI.
Affected
7 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| watchguard | fireware | >= 12.1 < 12.12.1 | 12.12.1 |
| watchguard | fireware | 12.5 – 12.5.18 | — |
| watchguard | fireware | >= 2025.1 < 2026.2.1 | 2026.2.1 |
| watchguard | fireware_os | >= 12.1 < 12.12.1 | 12.12.1 |
| watchguard | fireware_os | >= 12.1 < 12.11.9 | 12.11.9 |
| watchguard | fireware_os | >= 12.1 < 12.5.19 | 12.5.19 |
| watchguard | fireware_os | >= 2025.1 < 2026.2.1 | 2026.2.1 |
CVSS provenance
nvdv3.17.2HIGHCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
nvdv4.08.6HIGHCVSS: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
Stop checking back — get the weekly exploitation signal.
Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.
VulDB
WatchGuard Fireware OS up to 12.5.18/12.12/2026.2 Requests out-of-bounds write (wgsa-2026-00021 / WID-SEC-2026-2193)
vuldb·2026-08-30·CVSS 7.2
CVE-2026-13384 [HIGH] WatchGuard Fireware OS up to 12.5.18/12.12/2026.2 Requests out-of-bounds write (wgsa-2026-00021 / WID-SEC-2026-2193)
A vulnerability was found in WatchGuard Fireware OS up to 12.5.18/12.12/2026.2 and classified as critical. The affected element is an unknown function of the component Requests Handler. Executing a manipulation can lead to out-of-bounds write.
This vulnerability is registered as CVE-2026-13384. It is possible to launch the attack remotely. No exploit is available.
GHSA
An Out-of-bounds Write vulnerability in WatchGuard Fireware OS wgagent process could allow an authenticated privileged user to execute arbitrary code via a specially crafted requests to the Management
ghsa_unreviewed·2026-07-03
CVE-2026-13384 [HIGH] CWE-787 An Out-of-bounds Write vulnerability in WatchGuard Fireware OS wgagent process could allow an authenticated privileged user to execute arbitrary code via a specially crafted requests to the Management
An Out-of-bounds Write vulnerability in WatchGuard Fireware OS wgagent process could allow an authenticated privileged user to execute arbitrary code via a specially crafted requests to the Management Web UI.This vulnerability affects Fireware OS 12.1 up to and including 12.12 and 2025.1 up to and including 2026.2.
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2026-07-03
Published