CVE-2024-0316 is a medium severity (CVSS 6.8) service outage weakness in FireEye Endpoint Security. No fixed version is confirmed in the record, so check the vendor or project page. It is not listed as exploited in the wild by CISA.
What's affected
Endpoint Security 5.2.0.958244 from FireEye. The description says an attacker could send multiple request packets to the containment_notify/preview parameter, which could lead to a service outage.
The weakness is mapped to CWE-460, improper cleanup on a thrown exception. The record was published on 2024-01-15. The record's KEV flag is false, so CISA does not list it in the Known Exploited Vulnerabilities catalog.
How to check if you're exposed
This is software you install yourself or an appliance, so start from your own inventory. Find where the product runs, read its version from the application, its package metadata or its install directory, and compare it to the range above.
grep -ril "'+d['short'].split('-')[0]+'" /var/www 2>/dev/null
That searches a typical web root for the product name, so adjust the path to your server. For code you maintain, search for the file and parameter named in the record and read how the value is used.
You can also paste a manifest or SBOM into the free in-browser scanner at Safeguard Gold to see which known CVEs apply to your dependencies. It only covers components that appear in a manifest or SBOM, so a standalone appliance still needs the manual check.
What to do now
- Find every deployment of FireEye Endpoint Security in your environment, including test systems and anything bought or installed by a team outside IT.
- Check the vendor or project page for a fixed release. None is confirmed in the record, so do not assume that upgrading to the latest version resolves it until the notes say so.
- Restrict network access to the management service to known administrator addresses.
- Monitor the service for unexpected restarts or unresponsiveness.
- Contact the vendor for the fixed release and document the date you applied it.
- Re-run a scan after the change and record the date, so you can show the exposure is closed.
Why it matters
Improper cleanup of exceptions means that when an error is thrown, resources are not released correctly. Repeated requests can then build up until the service stops answering.
The impact is on availability. For an endpoint security product, an outage of the management service can leave defenders without visibility, so it is worth treating even a medium score with care.
The CVSS vector reads as follows. The attack is possible with local access, attack complexity is low, privileges required are none, and user interaction is not needed. The impact on confidentiality, integrity and availability is no, limited and high respectively. A score is a starting point. Your own exposure, meaning whether the product faces the internet and what it can reach, decides the real priority.
Quick check
Is this vulnerability known to be exploited in the wild?
The record's KEV flag is false, so CISA does not list it in the Known Exploited Vulnerabilities catalog. Check the vendor advisory for current status.
Which versions are fixed?
No fixed version is confirmed in the record, so check the vendor or project page.
Sources
The vendor and researcher references listed in the NVD record could not be retrieved when this post was written, so the details above come from the NVD record itself.
Last reviewed: 19 October 2026.
