WatchGuard Fireware OS up to 12.11.4/2025.1.2 Web UI expected behavior violation
| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 3.9 | $0-$5k | 0.00 |
Summary
A vulnerability categorized as problematic has been discovered in WatchGuard Fireware OS up to 12.11.4/2025.1.2. This impacts an unknown function of the component Web UI. The manipulation results in expected behavior violation. This vulnerability was named CVE-2025-13940. The attack needs to be approached locally. There is no available exploit.
Details
A vulnerability, which was classified as problematic, was found in WatchGuard Fireware OS up to 12.11.4/2025.1.2. Affected is an unknown functionality of the component Web UI. The manipulation with an unknown input leads to a expected behavior violation vulnerability. CWE is classifying the issue as CWE-440. A feature, API, or function does not perform according to its specification. This is going to have an impact on integrity. CVE summarizes:
An Expected Behavior Violation [CWE-440] vulnerability in WatchGuard Fireware OS may allow an attacker to bypass the Fireware OS boot time system integrity check and prevent the Firebox from shutting down in the event of a system integrity check failure. The on-demand system integrity check in the Fireware Web UI will correctly show a failed system integrity check message in the event of a failure.This issue affects Fireware OS: from 12.8.1 through 12.11.4, from 2025.1 through 2025.1.2.
The advisory is available at watchguard.com. This vulnerability is traded as CVE-2025-13940 since 12/03/2025. The exploitability is told to be easy. Local access is required to approach this attack. Additional levels of successful authentication are necessary for exploitation. The technical details are unknown and an exploit is not available.
There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.
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Product
Vendor
Name
Version
License
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔒VulDB Reliability: 🔍
CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒
CVSSv3
VulDB Meta Base Score: 3.9VulDB Meta Temp Score: 3.9
VulDB Base Score: 2.3
VulDB Temp Score: 2.3
VulDB Vector: 🔒
VulDB Reliability: 🔍
NVD Base Score: 5.5
NVD Vector: 🔒
CVSSv2
| AV | AC | Au | C | I | A |
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| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍
Exploiting
Class: Expected behavior violationCWE: CWE-440 / CWE-436
CAPEC: 🔒
ATT&CK: 🔒
Physical: Partially
Local: Yes
Remote: No
Availability: 🔒
Status: Not defined
EPSS Score: 🔒
EPSS Percentile: 🔒
Price Prediction: 🔍
Current Price Estimation: 🔒
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Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: no mitigation knownStatus: 🔍
0-Day Time: 🔒
Timeline
12/03/2025 CVE reserved12/05/2025 Advisory disclosed
12/05/2025 VulDB entry created
12/11/2025 VulDB entry last update
Sources
Advisory: wgsa-2025-00026Status: Confirmed
CVE: CVE-2025-13940 (🔒)
GCVE (CVE): GCVE-0-2025-13940
GCVE (VulDB): GCVE-100-334398
Entry
Created: 12/05/2025 01:59Updated: 12/11/2025 03:45
Changes: 12/05/2025 01:59 (65), 12/11/2025 03:45 (11)
Complete: 🔍
Cache ID: 216::103
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