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VulnerabilityPublished Updated

CVE-2024-46663: Fortinet FortiMail · Escalation of Privilege

Affects Fortinet FortiMailSource CVE Database V5

0

Public exploit available · CVSS 6.5 Medium.

Data as of 26 Oct 2026, 14:05 UTC

CVSS 3.1 base score
6.5Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.1% chance of exploitation in 30 days – higher than 7% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:F/RL:X/RC:C

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 11 Mar 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 FortiMailAffected
  • 6.4.0 – 7.6.0
5 affected builds
Fixed in–

AI-suggested

To mitigate CVE-2024-46663, organizations should prioritize applying vendor patches or updates as soon as they become available for affected FortiMail versions. Until patches are released, restrict CLI access strictly to trusted administrators and enforce strong authentication and access controls to minimize the risk of privilege escalation. Implement network segmentation to limit access to FortiMail management interfaces and monitor logs for unusual CLI command activity indicative of exploitation attempts. Employ endpoint detection and response (EDR) solutions to detect anomalous behavior on FortiMail devices. Regularly audit user privileges and remove unnecessary administrative rights to reduce the attack surface. Additionally, consider deploying multi-factor authentication (MFA) for CLI access and ensure that backup and recovery procedures are in place to restore services in case of compromise. Finally, maintain up-to-date threat intelligence to respond promptly if exploit code becomes publicly available.

Description

A stack-buffer overflow vulnerability [CWE-121] in Fortinet FortiMail CLI version 7.6.0 through 7.6.1 and before 7.4.3 allows a privileged attacker to execute arbitrary code or commands via specifically crafted CLI commands.

References

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