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VulnerabilityPublished Updated

CVE-2024-46669: Fortinet FortiOS · Denial of Service

Affects Fortinet FortiOSSource CVE Database V5

0

Public exploit available · CVSS 3.2 Low.

Data as of 26 Oct 2026, 14:05 UTC

CVSS 3.1 base score
3.2Low
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.6% chance of exploitation in 30 days – higher than 49% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 14 Jan 2025

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: evidence found.

    CVSS exploit maturity: proof of concept public

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq 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

ProductAffectedFixed in
Fortinet FortiOSAffected
  • =7.4.0
  • =7.2.0
Fixed in–

AI-suggested

  1. Apply vendor-provided patches or updates as soon as they become available to address the integer overflow vulnerability in FortiOS and FortiSASE.
  2. Restrict administrative access to Fortinet devices to trusted personnel and networks to reduce the risk of authenticated attackers exploiting the flaw.
  3. Implement strong authentication mechanisms, such as multi-factor authentication (MFA), to protect access to Fortinet management interfaces.
  4. Monitor IPsec tunnel stability and logs for unusual disconnections or crashes that may indicate exploitation attempts.
  5. Conduct regular vulnerability assessments and penetration tests focusing on VPN infrastructure to identify potential weaknesses.
  6. Segment management networks and enforce least privilege principles to limit the impact of compromised credentials.
  7. Maintain up-to-date incident response plans that include procedures for handling VPN service disruptions.
  8. Engage with Fortinet support and subscribe to security advisories to receive timely information on patches and mitigations.

Description

An Integer Overflow or Wraparound vulnerability [CWE-190] in version 7.4.4 and below, version 7.2.10 and below; FortiSASE version 23.4.b FortiOS tenant IPsec IKE service may allow an authenticated attacker to crash the IPsec tunnel via crafted requests, resulting in potential denial of service.

References

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