Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2026-13368

Severity CVSS v4.0:
CRITICAL
Type:
CWE-416 Use After Free
Publication date:
03/07/2026
Last modified:
28/08/2026

Description

WatchGuard Fireware OS contains a race condition leading to a use-after-free vulnerability in LDAP authentication for the Mobile User VPN with IKEv2. A remote unauthenticated attacker could exploit this vulnerability to execute arbitrary code in the context of the iked process on Fireboxes that have a Mobile VPN with IKEv2 configured to use an external LDAP authentication server.

Impact

Vector 4.0
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N CVSS v4.0 Severity and Metrics:

Base Score: 9.20 CRITICAL
Vector: CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Attack Vector (AV): Network
Attack Complexity (AC): High
Attack Requirements (AT): Present
Privileges Required (PR): None
User Interaction (UI): None
Confidentiality (VC): High
Integrity (VI): High
Availability (VA): High
Confidentiality (SC): None
Integrity (SI): None
Availability (SA): None

Base Score 4.0
9.20
Severity 4.0
CRITICAL
Vector 3.x
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS v3.1 Severity and Metrics:

Base Score: 8.10 HIGH
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector (AV): Network
Attack Complexity (AC): High
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

Base Score 3.x
8.10
Severity 3.x
HIGH

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:watchguard:fireware:*:*:*:*:*:*:*:* 2025.1 (including) 2026.2.1 (excluding)
cpe:2.3:h:watchguard:firebox_m295:-:*:*:*:*:*:*:*
cpe:2.3:h:watchguard:firebox_m395:-:*:*:*:*:*:*:*
cpe:2.3:h:watchguard:firebox_m495:-:*:*:*:*:*:*:*
cpe:2.3:h:watchguard:firebox_m595:-:*:*:*:*:*:*:*
cpe:2.3:h:watchguard:firebox_m695:-:*:*:*:*:*:*:*
cpe:2.3:h:watchguard:firebox_t115-w:-:*:*:*:*:*:*:*
cpe:2.3:h:watchguard:firebox_t125:-:*:*:*:*:*:*:*
cpe:2.3:h:watchguard:firebox_t125-w:-:*:*:*:*:*:*:*
cpe:2.3:h:watchguard:firebox_t145:-:*:*:*:*:*:*:*
cpe:2.3:h:watchguard:firebox_t145-w:-:*:*:*:*:*:*:*
cpe:2.3:h:watchguard:firebox_t185:-:*:*:*:*:*:*:*
cpe:2.3:o:watchguard:fireware:*:*:*:*:*:*:*:* 12.5 (including) 12.5.19 (excluding)
cpe:2.3:h:watchguard:firebox_t15:-:*:*:*:*:*:*:*
cpe:2.3:h:watchguard:firebox_t35:-:*:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools