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VulnerabilityPublished Updated

CVE-2024-27779: Fortinet FortiSandbox · Improper Access Control

Affects Fortinet FortiSandboxSource CVE Database V5

0

Public exploit available · CVSS 6.3 Medium.

Data as of 26 Oct 2026, 17:16 UTC

CVSS 3.1 base score
6.3Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.5% chance of exploitation in 30 days – higher than 46% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:L/E:P/RL:X/RC:C

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 18 Jul 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 FortiSandboxAffected
  • 3.2.0 – 4.4.0
4 affected builds
Fixed in–

AI-suggested

To mitigate CVE-2024-27779, organizations should immediately upgrade FortiSandbox and FortiIsolator to the latest patched versions once available. In the interim, enforce strict session management policies including reducing session timeout durations and implementing session revocation mechanisms upon user deletion or role changes. Monitor and audit administrative session activity closely to detect anomalies or unauthorized persistence. Employ multi-factor authentication (MFA) for administrative access to reduce risk of session hijacking. Network segmentation and access controls should limit exposure of FortiSandbox management interfaces to trusted networks only. Additionally, consider deploying web application firewalls (WAF) or intrusion detection systems (IDS) to detect suspicious session reuse patterns. Regularly review and rotate admin credentials and session tokens. Finally, educate administrators on secure session handling and the importance of logging out and terminating sessions when no longer needed.

Description

An insufficient session expiration vulnerability [CWE-613] in FortiSandbox FortiSandbox version 4.4.4 and below, version 4.2.6 and below, 4.0 all versions, 3.2 all versions and FortiIsolator version 2.4 and below, 2.3 all versions, 2.2 all versions, 2.1 all versions, 2.0 all versions, 1.2 all versions may allow a remote attacker in possession of an admin session cookie to keep using that admin's session even after the admin user was deleted.

References

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