# CVE-2025-61958: BIG-IP TMSH vulnerability

> Authenticated resource administrators can bypass TMSH restrictions to access a bash shell, crossing security boundaries in Appliance mode.

- **Severity:** High 8.5 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 15 Oct 2025
- **Updated:** 26 Feb 2026
- **Also known as:** GHSA-998q-4g4x-cwcj

## What is CVE-2025-61958?

CVE-2025-61958 is a high-severity vulnerability in F5 Big-Ip Access Policy Manager, published on 15 Oct 2025. An attacker needs administrator access to exploit it, with no action from the victim.

### Official description

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.

Weakness: CWE-250 (Execution with Unnecessary Privileges)

## Which versions are affected by CVE-2025-61958?

It affects 21 products.


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, F5 Big-Ip Application Security Manager, F5 Big-Ip Application Visibility and Reporting, F5 Big-Ip Automation Toolchain, F5 Big-Ip Carrier-Grade Nat, F5 Big-Ip Container Ingress Services, F5 Big-Ip Ddos Hybrid Defender, F5 Big-Ip Domain Name System, F5 Big-Ip Edge Gateway, F5 Big-Ip Fraud Protection Service, F5 Big-Ip Global Traffic Manager, F5 Big-Ip Link Controller, F5 Big-Ip Local Traffic Manager, F5 Big-Ip Policy Enforcement Manager, F5 Big-Ip Ssl Orchestrator, F5 Big-Ip Webaccelerator and 1 more.

## How do I fix CVE-2025-61958?

No fix has been published for CVE-2025-61958 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-61958 being exploited?

There is no known exploitation of CVE-2025-61958 in the wild and no public exploit code.

## Other vulnerabilities in F5 Big-Ip Access Policy Manager

- [CVE-2023-46747](https://insights.sbomify.com/CVE-2023-46747/): F5 BIG-IP Configuration Utility Authentication Bypass (critical 9.8, exploited in the wild)
- [CVE-2022-1388](https://insights.sbomify.com/CVE-2022-1388/): F5 BIG-IP Missing Authentication (critical 9.8, exploited in the wild)
- [CVE-2021-22986](https://insights.sbomify.com/CVE-2021-22986/): F5 BIG-IP and BIG-IQ Centralized Management iControl REST Remote Code Execution (critical 9.8, exploited in the wild)
- [CVE-2021-22991](https://insights.sbomify.com/CVE-2021-22991/): F5 BIG-IP Traffic Management Microkernel Buffer Overflow (critical 9.8, exploited in the wild)
- [CVE-2020-5902](https://insights.sbomify.com/CVE-2020-5902/): F5 BIG-IP Traffic Management User Interface (TMUI) Remote Code Execution (critical 9.8, exploited in the wild)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-61958 and fix it if it is affected.

What it is: CVE-2025-61958 is a high-severity vulnerability in F5 Big-Ip Access Policy Manager, published on 15 Oct 2025. An attacker needs administrator access to exploit it, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2025-61958 in the wild and no public exploit code.

Affected product: F5 Big-Ip Access Policy Manager. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2025-61958/ (Markdown: https://insights.sbomify.com/CVE-2025-61958/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-61958
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-61958
- OSV: https://osv.dev/vulnerability/CVE-2025-61958

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-61958/
Summaries are generated and may contain mistakes; the official description above is the record.