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F5 Networks BIG-IP : BIG-IP DTLS 1.2 vulnerability (K000151309)

high Nessus Plugin ID 270599

Synopsis

The remote device is missing a vendor-supplied security patch.

Description

The version of F5 Networks BIG-IP installed on the remote host is prior to 16.1.6.1 / 17.1.3 / 17.5.1. It is, therefore, affected by a vulnerability as referenced in the K000151309 advisory.

 Undisclosed traffic can cause the Traffic Management Microkernel (TMM) to terminate. This issue may occur when a Datagram Transport Layer Security (DTLS) 1.2 virtual server is enabled with a Server SSL profile that is configured with a certificate, key, and theSSL Sign Hashset toANY, and the backend server is enabled with DTLS 1.2 and client authentication. (CVE-2025-61951)

Tenable has extracted the preceding description block directly from the F5 Networks BIG-IP security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Upgrade to one of the non-vulnerable versions listed in the F5 Solution K000151309.

See Also

https://my.f5.com/manage/s/article/K000151309

Plugin Details

Severity: High

ID: 270599

File Name: f5_bigip_SOL000151309.nasl

Version: 1.1

Type: local

Published: 10/15/2025

Updated: 10/15/2025

Configuration: Enable paranoid mode

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C

CVSS Score Source: CVE-2025-61951

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

CVSS v4

Risk Factor: High

Base Score: 8.7

Threat Score: 6.6

Threat Vector: CVSS:4.0/E:U

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

Vulnerability Information

CPE: cpe:/a:f5:big-ip_application_security_manager, cpe:/a:f5:big-ip_access_policy_manager, cpe:/a:f5:big-ip_advanced_firewall_manager, cpe:/a:f5:big-ip_global_traffic_manager, cpe:/a:f5:big-ip_local_traffic_manager, cpe:/a:f5:big-ip_policy_enforcement_manager, cpe:/a:f5:big-ip_wan_optimization_manager, cpe:/a:f5:big-ip_domain_name_system, cpe:/h:f5:big-ip_protocol_security_manager, cpe:/h:f5:big-ip, cpe:/a:f5:big-ip_ssl_orchestrator, cpe:/a:f5:big-ip_irules_lx, cpe:/a:f5:big-ip_iapps_lx

Required KB Items: Host/local_checks_enabled, Settings/ParanoidReport, Host/BIG-IP/hotfix, Host/BIG-IP/modules, Host/BIG-IP/version

Exploit Ease: No known exploits are available

Patch Publication Date: 10/15/2025

Vulnerability Publication Date: 10/15/2025

Reference Information

CVE: CVE-2025-61951