# CVE-2026-13368: WatchGuard Firebox Race Condition and Use-After-Free in Mobile VPN with IKEv2 LDAP Authentication

> Remote attackers can execute arbitrary code on WatchGuard Fireboxes via a use-after-free in IKEv2 LDAP authentication when configured.

- **Severity:** Critical 9.2 (`CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/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:** 2 Jul 2026
- **Updated:** 27 Aug 2026
- **Also known as:** GHSA-fp7c-rxxp-rx8q

## What is CVE-2026-13368?

CVE-2026-13368 is a critical use after free vulnerability in Watchguard Fireware, published on 2 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

WatchGuard Fireware OS contains a race condition leading to a use-after-free vulnerability in LDAP authentication for the Mobile User VPN with IKEv2. A remote unauthenticated attacker could exploit this vulnerability to execute arbitrary code in the context of the iked process on Fireboxes that have a Mobile VPN with IKEv2 configured to use an external LDAP authentication server.

Weakness: CWE-416 (Use After Free)

## Which versions are affected by CVE-2026-13368?

It affects 1 product.


Products: Watchguard Fireware.

## How do I fix CVE-2026-13368?

No fix has been published for CVE-2026-13368 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-13368 being exploited?

There is no known exploitation of CVE-2026-13368 in the wild and no public exploit code.

## Other vulnerabilities in Watchguard Fireware

- [CVE-2022-26318](https://insights.sbomify.com/CVE-2022-26318/): WatchGuard Firebox and XTM Appliances Arbitrary Code Execution (critical 9.8, exploited in the wild)
- [CVE-2025-14733](https://insights.sbomify.com/CVE-2025-14733/): WatchGuard Firebox Out of Bounds Write (critical 9.3, exploited in the wild)
- [CVE-2025-9242](https://insights.sbomify.com/CVE-2025-9242/): WatchGuard Firebox Out-of-Bounds Write (critical 9.3, exploited in the wild)
- [CVE-2022-23176](https://insights.sbomify.com/CVE-2022-23176/): WatchGuard Firebox and XTM Privilege Escalation (high 8.8, exploited in the wild)
- [CVE-2022-31789](https://insights.sbomify.com/CVE-2022-31789/): Integer overflow in n/a (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-13368 and fix it if it is affected.

What it is: CVE-2026-13368 is a critical use after free vulnerability in Watchguard Fireware, published on 2 Jul 2026. 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-2026-13368 in the wild and no public exploit code.

Affected product: Watchguard Fireware. 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-2026-13368/ (Markdown: https://insights.sbomify.com/CVE-2026-13368/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-13368
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-13368
- OSV: https://osv.dev/vulnerability/CVE-2026-13368

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-13368/
Summaries are generated and may contain mistakes; the official description above is the record.