# CVE-2026-50217: Use after free in Guardicore Platform Agent

> A local attacker can cause a system crash via a crafted ICMPv6 packet in Akamai Guardicore Platform Agent when IPv6 redirect policies are enabled.

- **Severity:** Medium 4.7 (`CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 14 Oct 2026
- **Updated:** 14 Oct 2026
- **Also known as:** GHSA-p8p9-vpf5-3ff3

## What is CVE-2026-50217?

CVE-2026-50217 is a medium-severity use after free vulnerability in Akamai Guardicore Platform Agent, published on 14 Oct 2026. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

A use-after-free vulnerability in the Windows WFP callout driver of Akamai Guardicore Platform Agent (GPA) allows a local low-privileged user to cause a denial of service (system crash / BSOD) via an outbound ICMPv6 packet containing an IPv6 Hop-by-Hop extension header. When the IPv6 ICMP redirect policy is active, the packet is copied into a buffer that is freed but subsequently passed to a downstream filter. The size of the freed allocation is attacker-controlled (via packet length), enabling kernel pool grooming. Exploitation requires that the non-default IPv6 ICMP capture/redirect policy is enabled for the endpoint.

Weakness: CWE-416 (Use After Free)

## Which versions are affected by CVE-2026-50217?


## How do I fix CVE-2026-50217?

No fix has been published for CVE-2026-50217 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-50217 being exploited?

There is no known exploitation of CVE-2026-50217 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-50217 and fix it if it is affected.

What it is: CVE-2026-50217 is a medium-severity use after free vulnerability in Akamai Guardicore Platform Agent, published on 14 Oct 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-50217 in the wild and no public exploit code.

Affected product: Akamai Guardicore Platform Agent. 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-2026-50217/ (Markdown: https://insights.sbomify.com/CVE-2026-50217/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-50217
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-50217
- OSV: https://osv.dev/vulnerability/CVE-2026-50217

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-50217/
Summaries are generated and may contain mistakes; the official description above is the record.