VDB-294764 · CVE-2025-23415 · K000139656

F5 BIG-IP up to 16.1.4/17.1.1 APM Access Policy Endpoint Inspection data authenticity

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
3.1	$0-$5k	0.00

Summaryinfo

A vulnerability categorized as problematic has been discovered in F5 BIG-IP up to 16.1.4/17.1.1. This affects an unknown function of the component APM Access Policy Endpoint Inspection. Such manipulation leads to data authenticity. This vulnerability is traded as CVE-2025-23415. The attack may be launched remotely. There is no exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in F5 BIG-IP up to 16.1.4/17.1.1 and classified as problematic. Affected by this issue is an unknown functionality of the component APM Access Policy Endpoint Inspection. The manipulation with an unknown input leads to a data authenticity vulnerability. Using CWE to declare the problem leads to CWE-345. The product does not sufficiently verify the origin or authenticity of data, in a way that causes it to accept invalid data. Impacted is integrity. CVE summarizes:

An insufficient verification of data authenticity vulnerability exists in BIG-IP APM Access Policy endpoint inspection that may allow an attacker to bypass endpoint inspection checks for VPN connection initiated thru BIG-IP APM browser network access VPN client for Windows, macOS and Linux. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

The advisory is shared for download at my.f5.com. This vulnerability is handled as CVE-2025-23415 since 01/22/2025. The exploitation is known to be difficult. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 215011 (F5 Networks BIG-IP : BIG-IP APM endpoint inspection vulnerability (K000139656)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 16.1.5 or 17.1.2 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (215011). Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Firewall Software

Vendor

Name

BIG-IP

Version

License

commercial

Website

Vendor: https://f5.com/

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: 3.1
VulDB Meta Temp Score: 3.1

VulDB Base Score: 3.1
VulDB Temp Score: 3.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 3.1
NVD Vector: 🔍

CNA Base Score: 3.1
CNA Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Data authenticity
CWE: CWE-345
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Nessus ID: 215011
Nessus Name: F5 Networks BIG-IP : BIG-IP APM endpoint inspection vulnerability (K000139656)

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: BIG-IP 16.1.5/17.1.2

Timelineinfo

01/22/2025 🔍
02/05/2025 +14 days 🔍
02/05/2025 +0 days 🔍
11/12/2025 +280 days 🔍

Sourcesinfo

Vendor: f5.com

Advisory: K000139656
Status: Confirmed

CVE: CVE-2025-23415 (🔍)
GCVE (CVE): GCVE-0-2025-23415
GCVE (VulDB): GCVE-100-294764

Entryinfo

Created: 02/05/2025 19:37
Updated: 11/12/2025 17:03
Changes: 02/05/2025 19:37 (76), 02/06/2025 01:16 (2), 11/12/2025 17:03 (11)
Complete: 🔍
Cache ID: 216::103