CVE-2024-46668: Fortinet FortiOS · Denial of Service
Affects Fortinet FortiOSSource CVE Database V5
Public exploit available · CVSS 7.1 High.
Data as of 26 Oct 2026, 14:05 UTC
- EPSS
- 0.9% chance of exploitation in 30 days – higher than 62% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:U/RC:CExploitation evidence
Disclosed: evidence found.
CVE published 14 Jan 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: evidence found.
CVSS exploit maturity: proof of concept public
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), CVSS vector, the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Fortinet FortiOS | Affected
| Fixed in– |
AI-suggested
- Monitor Fortinet advisories closely and apply security patches or firmware updates as soon as they are released to address CVE-2024-46668.
- Implement network-level controls to limit or throttle large file uploads to FortiOS devices, such as rate limiting or file size restrictions at perimeter gateways or proxies.
- Employ intrusion detection and prevention systems (IDS/IPS) to detect anomalous traffic patterns consistent with large file upload floods targeting FortiOS management or upload interfaces.
- Restrict access to FortiOS management interfaces and upload endpoints to trusted IP addresses or VPNs to reduce exposure to unauthenticated attackers.
- Conduct regular capacity planning and resource monitoring on FortiOS devices to detect early signs of memory exhaustion or abnormal resource consumption.
- Develop and test incident response plans specifically for FortiOS device outages to minimize downtime and recovery time in case of exploitation.
- Consider network segmentation to isolate critical FortiOS devices and limit the blast radius of potential DoS attacks.
- Engage with Fortinet support for guidance on interim mitigations if patches are not yet available.
Description
An allocation of resources without limits or throttling vulnerability [CWE-770] in FortiOS versions 7.4.0 through 7.4.4, versions 7.2.0 through 7.2.8, versions 7.0.0 through 7.0.15, and versions 6.4.0 through 6.4.15 may allow an unauthenticated remote user to consume all system memory via multiple large file uploads.