F5 BIG-IP up to 16.1.4/17.1.1 Traffic Management Microkernel null pointer dereference

CVSS Meta Temp Score
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CTI Interest Score
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7.3$0-$5k0.00

Summaryinfo

A vulnerability described as problematic has been identified in F5 BIG-IP up to 16.1.4/17.1.1. This impacts an unknown function of the component Traffic Management Microkernel. Executing a manipulation can lead to null pointer dereference. The identification of this vulnerability is CVE-2025-20045. The attack may be launched remotely. There is no exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability has been found in F5 BIG-IP up to 16.1.4/17.1.1 and classified as critical. This vulnerability affects an unknown code block of the component Traffic Management Microkernel. The manipulation with an unknown input leads to a null pointer dereference vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect availability. CVE summarizes:

When SIP session Application Level Gateway mode (ALG) profile with Passthru Mode enabled and SIP router ALG profile are configured on a Message Routing type virtual server, undisclosed traffic can cause the Traffic Management Microkernel (TMM) to terminate.  Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

The advisory is available at my.f5.com. This vulnerability was named CVE-2025-20045 since 01/22/2025. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. The technical details are unknown and an exploit is not available.

The vulnerability scanner Nessus provides a plugin with the ID 215014 (F5 Networks BIG-IP : BIG-IP SIP ALG profile vulnerability (K000138932)), 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 (215014). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

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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: 7.5
VulDB Meta Temp Score: 7.3

VulDB Base Score: 7.5
VulDB Temp Score: 7.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 7.5
CNA Vector: 🔍

CVSSv2info

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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

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 215014
Nessus Name: F5 Networks BIG-IP : BIG-IP SIP ALG profile vulnerability (K000138932)

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 🔍
10/21/2025 +258 days 🔍

Sourcesinfo

Vendor: f5.com

Advisory: K000138932
Status: Confirmed

CVE: CVE-2025-20045 (🔍)
GCVE (CVE): GCVE-0-2025-20045
GCVE (VulDB): GCVE-100-294754

Entryinfo

Created: 02/05/2025 18:49
Updated: 10/21/2025 14:07
Changes: 02/05/2025 18:49 (77), 02/06/2025 00:03 (2), 10/21/2025 14:07 (1)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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