CVE-2025-20045

HIGH
2025-02-05 [email protected]
8.7
CVSS 4.0
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CVSS 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
X

Lifecycle Timeline

2
Analysis Generated
Mar 28, 2026 - 18:25 vuln.today
CVE Published
Feb 05, 2025 - 18:15 nvd
HIGH 8.7

Tags

Null Pointer Dereference Denial Of Service Big Ip Access Policy Manager Big Ip Advanced Firewall Manager Big Ip Advanced Web Application Firewall Big Ip Analytics Big Ip Application Acceleration Manager Big Ip Application Security Manager Big Ip Application Visibility And Reporting Big Ip Automation Toolchain Big Ip Carrier Grade Nat Big Ip Container Ingress Services Big Ip Ddos Hybrid Defender Big Ip Domain Name System Big Ip Edge Gateway Big Ip Fraud Protection Service Big Ip Global Traffic Manager Big Ip Link Controller Big Ip Local Traffic Manager Big Ip Policy Enforcement Manager Big Ip Ssl Orchestrator Big Ip Webaccelerator Big Ip Websafe

Description

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.

Analysis

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. Rated high severity (CVSS 8.7), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Technical Context

This vulnerability is classified as NULL Pointer Dereference (CWE-476), which allows attackers to crash the application by dereferencing a null pointer. 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. Affected products include: F5 Big-Ip Access Policy Manager, F5 Big-Ip Advanced Firewall Manager, F5 Big-Ip Advanced Web Application Firewall, F5 Big-Ip Analytics, F5 Big-Ip Application Acceleration Manager.

Affected Products

F5 Big-Ip Access Policy Manager, F5 Big-Ip Advanced Firewall Manager, F5 Big-Ip Advanced Web Application Firewall, F5 Big-Ip Analytics, F5 Big-Ip Application Acceleration Manager.

Remediation

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Check pointers before dereferencing. Use static analysis tools to detect null pointer paths.

Priority Score

44
Low Medium High Critical
KEV: 0
EPSS: +0.6
CVSS: +44
POC: 0

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CVE-2025-20045 vulnerability details – vuln.today
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