Cyber Resilience

CVE-2024-27779

Medium

Published: 18 July 2025

Published
18 July 2025
Modified
22 July 2025
KEV Added
Patch
CVSS Score v3.1 6.7 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:L
EPSS Score 0.0045 64.2th percentile
Risk Priority 14 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2024-27779 is a medium-severity Insufficient Session Expiration (CWE-613) vulnerability in Fortinet Fortisandbox. Its CVSS base score is 6.7 (Medium).

Operationally, ranked in the top 35.8% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

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…

more

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.

CWE(s)

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

fortinet
fortiisolator
1.2.0 — 2.4.5
fortinet
fortisandbox
3.2.0 — 4.2.7 · 4.4.0 — 4.4.5

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

addresses: CWE-613

Locks the device (typically after inactivity) until re-authentication, addressing insufficient session expiration by preventing indefinite access.

addresses: CWE-613

Automatically terminating sessions after a defined period directly enforces session expiration, preventing indefinite session lifetimes that attackers can exploit.

addresses: CWE-613

Re-authentication after inactivity or time-based triggers prevents indefinite use of potentially hijacked or stale sessions.

addresses: CWE-613

Terminating sessions and network connections upon completion prevents insufficient session expiration.

addresses: CWE-613

Directly enforces termination of network sessions after inactivity or end-of-session, preventing indefinite session lifetime.

addresses: CWE-613

Consistent clocks across systems allow session expiration and timeout enforcement to function as intended in distributed environments.

addresses: CWE-613

When the non-persistent artifact is a session or connection, mandatory termination implements the missing expiration that CWE-613 describes.

addresses: CWE-613

Timed refresh of session-related information or on-demand generation plus deletion implements proper session expiration.

References