# CVE-2025-55036: BIG-IP SSL Orchestrator vulnerability

> Attackers can trigger memory corruption in BIG-IP SSL Orchestrator when explicit forward proxy and proxy connect are enabled, potentially leading to code execution or denial of service.

- **Severity:** High 8.7 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 15 Oct 2025
- **Updated:** 26 Feb 2026
- **Also known as:** GHSA-5w8q-m8cq-gcqq

## What is CVE-2025-55036?

CVE-2025-55036 is a high-severity memory corruption vulnerability in F5 Big-Ip Ssl Orchestrator, published on 15 Oct 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

When BIG-IP SSL Orchestrator explicit forward proxy is configured on a virtual server and the proxy connect feature is enabled, undisclosed traffic may cause memory corruption.  Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

Weakness: CWE-787 (Out-of-bounds Write)

## Which versions are affected by CVE-2025-55036?

It affects 1 product.


Products: F5 Big-Ip Ssl Orchestrator.

## How do I fix CVE-2025-55036?

No fix has been published for CVE-2025-55036 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-55036 being exploited?

There is no known exploitation of CVE-2025-55036 in the wild and no public exploit code.

## Other vulnerabilities in F5 Big-Ip Ssl Orchestrator

- [CVE-2025-41430](https://insights.sbomify.com/CVE-2025-41430/): BIG-IP SSL Orchestrator vulnerability (high 8.7)
- [CVE-2026-42780](https://insights.sbomify.com/CVE-2026-42780/): BIG-IP SSL Orchestrator vulnerability (medium 6.9)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-55036 and fix it if it is affected.

What it is: CVE-2025-55036 is a high-severity memory corruption vulnerability in F5 Big-Ip Ssl Orchestrator, published on 15 Oct 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2025-55036 in the wild and no public exploit code.

Affected product: F5 Big-Ip Ssl Orchestrator. 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-2025-55036/ (Markdown: https://insights.sbomify.com/CVE-2025-55036/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-55036
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-55036
- OSV: https://osv.dev/vulnerability/CVE-2025-55036

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-55036/
Summaries are generated and may contain mistakes; the official description above is the record.