WatchGuard Fireware OS up to 12.5.16/12.11.7/2026.1.1 OS Filesystem Integrity Check expected behavior violation

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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3.8$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, was found in WatchGuard Fireware OS up to 12.5.16/12.11.7/2026.1.1. Affected by this vulnerability is an unknown functionality of the component OS Filesystem Integrity Check. The manipulation results in expected behavior violation. This vulnerability is identified as CVE-2026-3344. The attack can be executed remotely. There is not any exploit available.

Detailsinfo

A vulnerability, which was classified as problematic, was found in WatchGuard Fireware OS up to 12.5.16/12.11.7/2026.1.1. Affected is some unknown functionality of the component OS Filesystem Integrity Check. 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:

A vulnerability in WatchGuard Fireware OS may allow an attacker to bypass the Fireware OS filesystem integrity check and maintain limited persistence via a maliciously-crafted firmware update package.This issue affects Fireware OS 12.0 up to and including 12.11.7, 12.5.9 up to and including 12.5.16, and 2025.1 up to and including 2026.1.1.

The advisory is available at watchguard.com. This vulnerability is traded as CVE-2026-3344 since 02/27/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation needs additional levels of successful authentication. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 03/06/2026).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 3.8
VulDB Meta Temp Score: 3.8

VulDB Base Score: 2.7
VulDB Temp Score: 2.7
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 4.9
NVD Vector: 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Expected behavior violation
CWE: CWE-440 / CWE-436
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

02/27/2026 CVE reserved
03/03/2026 +4 days Advisory disclosed
03/03/2026 +0 days VulDB entry created
03/06/2026 +3 days VulDB entry last update

Sourcesinfo

Advisory: wgsa-2026-0005
Status: Confirmed

CVE: CVE-2026-3344 (🔒)
GCVE (CVE): GCVE-0-2026-3344
GCVE (VulDB): GCVE-100-348546

Entryinfo

Created: 03/03/2026 14:57
Updated: 03/06/2026 12:03
Changes: 03/03/2026 14:57 (65), 03/04/2026 20:39 (11), 03/06/2026 12:03 (1)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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