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

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CVE-2026-42408

Severity CVSS v4.0:
MEDIUM
Type:
CWE-312 Cleartext Storage of Sensitive Information
Publication date:
13/05/2026
Last modified:
23/06/2026

Description

When BIG-IP DNS is provisioned, a vulnerability exists in an undisclosed TMOS Shell (tmsh) command that may allow a highly privileged authenticated attacker to view sensitive information.  Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

Impact

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

Base Score: 6.70 MEDIUM
Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

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

Base Score 4.0
6.70
Severity 4.0
MEDIUM
Vector 3.x
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N CVSS v3.1 Severity and Metrics:

Base Score: 4.40 MEDIUM
Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N

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

Base Score 3.x
4.40
Severity 3.x
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:* 16.1.0 (including) 16.1.6 (including)
cpe:2.3:a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*:* 16.1.0 (including) 16.1.6 (including)
cpe:2.3:a:f5:big-ip_advanced_web_application_firewall:*:*:*:*:*:*:*:* 16.1.0 (including) 16.1.6 (including)
cpe:2.3:a:f5:big-ip_analytics:*:*:*:*:*:*:*:* 16.1.0 (including) 16.1.6 (including)
cpe:2.3:a:f5:big-ip_application_acceleration_manager:*:*:*:*:*:*:*:* 16.1.0 (including) 16.1.6 (including)
cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:* 16.1.0 (including) 16.1.6 (including)
cpe:2.3:a:f5:big-ip_application_visibility_and_reporting:*:*:*:*:*:*:*:* 16.1.0 (including) 16.1.6 (including)
cpe:2.3:a:f5:big-ip_automation_toolchain:*:*:*:*:*:*:*:* 16.1.0 (including) 16.1.6 (including)
cpe:2.3:a:f5:big-ip_carrier-grade_nat:*:*:*:*:*:*:*:* 16.1.0 (including) 16.1.6 (including)
cpe:2.3:a:f5:big-ip_container_ingress_services:*:*:*:*:*:*:*:* 16.1.0 (including) 16.1.6 (including)
cpe:2.3:a:f5:big-ip_ddos_hybrid_defender:*:*:*:*:*:*:*:* 16.1.0 (including) 16.1.6 (including)
cpe:2.3:a:f5:big-ip_domain_name_system:*:*:*:*:*:*:*:* 16.1.0 (including) 16.1.6 (including)
cpe:2.3:a:f5:big-ip_edge_gateway:*:*:*:*:*:*:*:* 16.1.0 (including) 16.1.6 (including)
cpe:2.3:a:f5:big-ip_fraud_protection_service:*:*:*:*:*:*:*:* 16.1.0 (including) 16.1.6 (including)
cpe:2.3:a:f5:big-ip_global_traffic_manager:*:*:*:*:*:*:*:* 16.1.0 (including) 16.1.6 (including)

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


References to Advisories, Solutions, and Tools