WatchGuard Fireware OS up to 12.11.4/2025.1.2 Mobile User VPN release of reference

CVSS Meta Temp Score
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CTI Interest Score
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7.5$0-$5k0.00

Summaryinfo

A vulnerability was found in WatchGuard Fireware OS up to 12.11.4/2025.1.2. It has been rated as critical. This affects an unknown function of the component Mobile User VPN. The manipulation leads to release of reference. This vulnerability is uniquely identified as CVE-2025-11838. The attack is possible to be carried out remotely. No exploit exists.

Detailsinfo

A vulnerability, which was classified as critical, has been found in WatchGuard Fireware OS up to 12.11.4/2025.1.2. This issue affects an unknown function of the component Mobile User VPN. The manipulation with an unknown input leads to a release of reference vulnerability. Using CWE to declare the problem leads to CWE-763. The product attempts to return a memory resource to the system, but it calls the wrong release function or calls the appropriate release function incorrectly. Impacted is availability. The summary by CVE is:

A memory corruption vulnerability in WatchGuard Fireware OS may allow an unauthenticated attacker to trigger a Denial of Service (DoS) condition in 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 12.6.1 up to and including 12.11.4 and 2025.1 up to and including 2025.1.2.

The weakness was disclosed by McCaulay Hudson as wgsa-2025-00018. The advisory is shared at watchguard.com. The identification of this vulnerability is CVE-2025-11838 since 10/16/2025. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Neither technical details nor an exploit are publicly 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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Productinfo

Vendor

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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: 7.5
VulDB Meta Temp Score: 7.5

VulDB Base Score: 7.5
VulDB Temp Score: 7.5
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔒

CVSSv2info

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

Exploitinginfo

Class: Release of reference
CWE: CWE-763 / CWE-404
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

10/16/2025 CVE reserved
12/05/2025 +50 days Advisory disclosed
12/05/2025 +0 days VulDB entry created
12/16/2025 +11 days VulDB entry last update

Sourcesinfo

Advisory: wgsa-2025-00018
Researcher: McCaulay Hudson
Status: Confirmed

CVE: CVE-2025-11838 (🔒)
GCVE (CVE): GCVE-0-2025-11838
GCVE (VulDB): GCVE-100-334397

Entryinfo

Created: 12/05/2025 01:59
Updated: 12/16/2025 02:33
Changes: 12/05/2025 01:59 (66), 12/11/2025 02:18 (9), 12/16/2025 02:33 (1)
Complete: 🔍
Cache ID: 216::103

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