WatchGuard Fireware OS up to 11.12.4+541730/12.5.18/12.12/2026.2 Mobile User VPN with IKEv2 null pointer dereference

CVSS Meta Temp Score
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CTI Interest Score
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5.3$0-$5k1.43+

Summaryinfo

A vulnerability was found in WatchGuard Fireware OS up to 11.12.4+541730/12.5.18/12.12/2026.2. It has been classified as problematic. This issue affects some unknown processing of the component Mobile User VPN with IKEv2. Performing a manipulation results in null pointer dereference. This vulnerability is reported as CVE-2026-13084. The attack is possible to be carried out remotely. No exploit exists.

Detailsinfo

A vulnerability was found in WatchGuard Fireware OS up to 11.12.4+541730/12.5.18/12.12/2026.2. It has been classified as problematic. This affects an unknown code block of the component Mobile User VPN with IKEv2. The manipulation with an unknown input leads to a null pointer dereference vulnerability. CWE is classifying the issue as CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. This is going to have an impact on availability. The summary by CVE is:

A null pointer dereference vulnerability in WatchGuard Fireware OS may allow a remote unauthenticated attacker to create a denial-of-service (DoS) condition by sending specially crafted IKEv2 messages. 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 12.12 and 2025.1 up to and including 2026.2

The advisory is shared at watchguard.com. This vulnerability is uniquely identified as CVE-2026-13084 since 06/23/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for 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.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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: 5.3
VulDB Meta Temp Score: 5.3

VulDB Base Score: 5.3
VulDB Temp Score: 5.3
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

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

Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / CWE-404
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
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

06/23/2026 CVE reserved
07/03/2026 +10 days Advisory disclosed
07/03/2026 +0 days VulDB entry created
07/03/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: wgsa-2026-00024
Status: Confirmed

CVE: CVE-2026-13084 (🔒)
GCVE (CVE): GCVE-0-2026-13084
GCVE (VulDB): GCVE-100-376017

Entryinfo

Created: 07/03/2026 06:20
Changes: 07/03/2026 06:20 (66)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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