CVE-2025-61958: BIG-IP TMSH vulnerability

Published Oct 15, 2025
·
Updated

A vulnerability exists in the iHealth command that may allow an authenticated attacker with at least a resource administrator role to bypass tmsh restrictions and gain access to a bash shell.  For BIG-IP systems running in Appliance mode, a successful exploit can allow the attacker to cross a security boundary.  Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

Other sources

A vulnerability exists in the iHealth utility of the TMOS Shell (tmsh) that may allow an authenticated attacker with at least a resource administrator role to bypass tmsh restrictions and gain access to the Advanced Shell (bash). For BIG-IP systems running in Appliance mode, a successful exploit can allow the attacker to cross a security boundary.

— F5

Affected Software

87 affected componentsFixes available
F5 BIG-IP>=17.5.0<=17.5.1, >=17.1.0<=17.1.2
17.5.1.117.1.3
F5 BIG-IP>=16.1.0<=16.1.6
16.1.6.1
F5 BIG-IP>=15.1.0<=15.1.10
15.1.10.8
F5 BIG-IP Access Policy Manager>=15.1.0<15.1.10.8
F5 BIG-IP Advanced Firewall Manager>=15.1.0<15.1.10.8
F5 Big-ip Advanced Web Application Firewall>=15.1.0<15.1.10.8
F5 BIG-IP Analytics>=15.1.0<15.1.10.8
F5 Big-ip Application Acceleration Manager>=15.1.0<15.1.10.8
F5 BIG-IP Application Security Manager>=15.1.0<15.1.10.8
F5 Big-ip Application Visibility And Reporting>=15.1.0<15.1.10.8
F5 Big-ip Automation Toolchain>=15.1.0<15.1.10.8
F5 Big-ip Carrier-grade Nat>=15.1.0<15.1.10.8
F5 BIG-IP Container Ingress Services>=15.1.0<15.1.10.8
F5 Big-ip Ddos Hybrid Defender>=15.1.0<15.1.10.8
F5 Big-ip Domain Name System>=15.1.0<15.1.10.8
F5 BIG-IP Edge Gateway>=15.1.0<15.1.10.8
F5 Big-ip Fraud Protection Service>=15.1.0<15.1.10.8
F5 Big-ip Global Traffic Manager>=15.1.0<15.1.10.8
F5 Big-ip Link Controller>=15.1.0<15.1.10.8
F5 Big-ip Local Traffic Manager>=15.1.0<15.1.10.8
F5 Big-ip Policy Enforcement Manager>=15.1.0<15.1.10.8
F5 BIG-IP SSL Orchestrator>=15.1.0<15.1.10.8
F5 Big-ip Webaccelerator>=15.1.0<15.1.10.8
F5 Big-ip Websafe>=15.1.0<15.1.10.8
F5 BIG-IP Access Policy Manager>=16.1.0<16.1.6.1
F5 BIG-IP Advanced Firewall Manager>=16.1.0<16.1.6.1
F5 Big-ip Advanced Web Application Firewall>=16.1.0<16.1.6.1
F5 BIG-IP Analytics>=16.1.0<16.1.6.1
F5 Big-ip Application Acceleration Manager>=16.1.0<16.1.6.1
F5 BIG-IP Application Security Manager>=16.1.0<16.1.6.1
F5 Big-ip Application Visibility And Reporting>=16.1.0<16.1.6.1
F5 Big-ip Automation Toolchain>=16.1.0<16.1.6.1
F5 Big-ip Carrier-grade Nat>=16.1.0<16.1.6.1
F5 BIG-IP Container Ingress Services>=16.1.0<16.1.6.1
F5 Big-ip Ddos Hybrid Defender>=16.1.0<16.1.6.1
F5 Big-ip Domain Name System>=16.1.0<16.1.6.1
F5 BIG-IP Edge Gateway>=16.1.0<16.1.6.1
F5 Big-ip Fraud Protection Service>=16.1.0<16.1.6.1
F5 Big-ip Global Traffic Manager>=16.1.0<16.1.6.1
F5 Big-ip Link Controller>=16.1.0<16.1.6.1
F5 Big-ip Local Traffic Manager>=16.1.0<16.1.6.1
F5 Big-ip Policy Enforcement Manager>=16.1.0<16.1.6.1
F5 BIG-IP SSL Orchestrator>=16.1.0<16.1.6.1
F5 Big-ip Webaccelerator>=16.1.0<16.1.6.1
F5 Big-ip Websafe>=16.1.0<16.1.6.1
F5 BIG-IP Access Policy Manager>=17.1.0<17.1.3
F5 BIG-IP Advanced Firewall Manager>=17.1.0<17.1.3
F5 Big-ip Advanced Web Application Firewall>=17.1.0<17.1.3
F5 BIG-IP Analytics>=17.1.0<17.1.3
F5 Big-ip Application Acceleration Manager>=17.1.0<17.1.3
F5 BIG-IP Application Security Manager>=17.1.0<17.1.3
F5 Big-ip Application Visibility And Reporting>=17.1.0<17.1.3
F5 Big-ip Automation Toolchain>=17.1.0<17.1.3
F5 Big-ip Carrier-grade Nat>=17.1.0<17.1.3
F5 BIG-IP Container Ingress Services>=17.1.0<17.1.3
F5 Big-ip Ddos Hybrid Defender>=17.1.0<17.1.3
F5 Big-ip Domain Name System>=17.1.0<17.1.3
F5 BIG-IP Edge Gateway>=17.1.0<17.1.3
F5 Big-ip Fraud Protection Service>=17.1.0<17.1.3
F5 Big-ip Global Traffic Manager>=17.1.0<17.1.3
F5 Big-ip Link Controller>=17.1.0<17.1.3
F5 Big-ip Local Traffic Manager>=17.1.0<17.1.3
F5 Big-ip Policy Enforcement Manager>=17.1.0<17.1.3
F5 BIG-IP SSL Orchestrator>=17.1.0<17.1.3
F5 Big-ip Webaccelerator>=17.1.0<17.1.3
F5 Big-ip Websafe>=17.1.0<17.1.3
F5 BIG-IP Access Policy Manager>=17.5.0<17.5.1.1
F5 BIG-IP Advanced Firewall Manager>=17.5.0<17.5.1.1
F5 Big-ip Advanced Web Application Firewall>=17.5.0<17.5.1.1
F5 BIG-IP Analytics>=17.5.0<17.5.1.1
F5 Big-ip Application Acceleration Manager>=17.5.0<17.5.1.1
F5 BIG-IP Application Security Manager>=17.5.0<17.5.1.1
F5 Big-ip Application Visibility And Reporting>=17.5.0<17.5.1.1
F5 Big-ip Automation Toolchain>=17.5.0<17.5.1.1
F5 Big-ip Carrier-grade Nat>=17.5.0<17.5.1.1
F5 BIG-IP Container Ingress Services>=17.5.0<17.5.1.1
F5 Big-ip Ddos Hybrid Defender>=17.5.0<17.5.1.1
F5 Big-ip Domain Name System>=17.5.0<17.5.1.1
F5 BIG-IP Edge Gateway>=17.5.0<17.5.1.1
F5 Big-ip Fraud Protection Service>=17.5.0<17.5.1.1
F5 Big-ip Global Traffic Manager>=17.5.0<17.5.1.1
F5 Big-ip Link Controller>=17.5.0<17.5.1.1
F5 Big-ip Local Traffic Manager>=17.5.0<17.5.1.1
F5 Big-ip Policy Enforcement Manager>=17.5.0<17.5.1.1
F5 BIG-IP SSL Orchestrator>=17.5.0<17.5.1.1
F5 Big-ip Webaccelerator>=17.5.0<17.5.1.1
F5 Big-ip Websafe>=17.5.0<17.5.1.1

Event History

Oct 15, 2025
Advisory Published
via F5·11:16 AM
Data Sourced
via F5·11:16 AM
DescriptionSeverityWeaknessAffected Software
CVE Published
via MITRE·01:55 PM
Data Sourced
via MITRE·01:55 PM
DescriptionSeverityWeakness
Data Sourced
via NVD·02:15 PM
DescriptionSeverityWeaknessAffected Software
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Frequently Asked Questions

1

What is the severity of CVE-2025-61958?

CVE-2025-61958 is classified as a medium-severity vulnerability due to its potential to allow unauthorized access to critical system areas.

2

How do I fix CVE-2025-61958?

To mitigate CVE-2025-61958, upgrade to the latest patched version of F5 BIG-IP as specified in the product advisories.

3

Who is affected by CVE-2025-61958?

CVE-2025-61958 affects authenticated users with at least a resource administrator role on specific versions of F5 BIG-IP.

4

What systems are vulnerable to CVE-2025-61958?

F5 BIG-IP systems running in Appliance mode on specified versions from 15.1.0 to 17.5.1 are vulnerable to CVE-2025-61958.

5

What actions should be taken if CVE-2025-61958 is exploited?

If CVE-2025-61958 is exploited, immediate action should be taken to assess the system for unauthorized access and apply remediation using the latest patches.

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