Vulnerability Report

CVE-2025-14733

CISA KEV Active

Title: Out-of-bounds Write in WatchGuard Fireware OS

Memory Corruption

Proof Of Concept

PoC Available for CVE-2025-14733

CWE Category CWE-787
Published Date Dec 19, 2025
Modified Date Dec 23, 2025
Exploit Status Available
Score 9.3 CVSS v4.0
Exploit Probability (EPSS)
18.35%

Vulnerability Summary

CVE-2025-14733: An Out-of-bounds Write vulnerability in WatchGuard Fireware OS 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.This vulnerability affects Fireware OS 11.10.2 up to and including 11.12.4_Update1, 12.0 up to and including 12.11.5 and 2025.1 up to and including 2025.1.3.

Impacted Vendors

W
watchguard 33

Reference Links

https://www.watchguard.com/wgrd-psirt/advisory/wgsa-2025-00027 https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-14733
CVSS v4.0
Source Entity 5d1c2695-1a31-4499-88ae-e847036fd7e3
Severity CRITICAL
9.3
Attack Vector
NETWORK
Complexity
LOW
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
N/A
RAW VECTOR CVSS:4.0/AV:N/AC:L/AT:N/PR:N/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:Red
CVSS v3.1
Source Entity [email protected]
Severity CRITICAL
9.8
Attack Vector
NETWORK
Complexity
LOW
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2025-14733 Exploits & PoCs (Proof Of Concept)

GitHub https://github.com/Ashwesker/Ashwesker-CVE-2025-14733
View Code
GitHub https://github.com/machevalia/CVE-2025-14733
View Code
MODIFIED

Vulnerability data or affected products updated.

MODIFIED

Vulnerability data updated via NVD.

PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector NETWORK
Complexity LOW
Privileges N/A
Interaction NONE
CVSS Vector String CVSS:4.0/AV:N/AC:L/AT:N/PR:N/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:Red

Affected Stack

No specific products linked.