CVE-2024-27779 — 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

Back Back to CVE browser

MEDIUM

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

Published Jul 18, 2025

6.7

MEDIUM

CVSS 3.1

EPSS 0.47%

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.

Affected products

Vendor Fortinet Product FortiIsolator Default
unaffected
- Version
  1.2.0
  Status
  affected
  Constraints
  <=1.2.2
- Version
  2.0.0
  Status
  affected
  Constraints
  <=2.0.1
- Version
  2.1.0
  Status
  affected
  Constraints
  <=2.1.2
- Version
  2.2.0
  Status
  affected
  Constraints
  -
- Version
  2.3.0
  Status
  affected
  Constraints
  <=2.3.4
- Version
  2.4.0
  Status
  affected
  Constraints
  <=2.4.4
Vendor Fortinet Product FortiSandbox Default
unaffected
- Version
  3.2.0
  Status
  affected
  Constraints
  <=3.2.4
- Version
  4.0.0
  Status
  affected
  Constraints
  <=4.0.6
- Version
  4.2.1
  Status
  affected
  Constraints
  <=4.2.6
- Version
  4.4.0
  Status
  affected
  Constraints
  <=4.4.4

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor

Product

Default status

Versions

Fortinet

FortiIsolator

unaffected

Version	Status	Constraints
1.2.0	affected	<=1.2.2
2.0.0	affected	<=2.0.1
2.1.0	affected	<=2.1.2
2.2.0	affected	-
2.3.0	affected	<=2.3.4
2.4.0	affected	<=2.4.4

Fortinet

FortiSandbox

unaffected

Version	Status	Constraints
3.2.0	affected	<=3.2.4
4.0.0	affected	<=4.0.6
4.2.1	affected	<=4.2.6
4.4.0	affected	<=4.4.4

Remediation

Vendor solution

Upgrade to FortiSandbox version 4.4.5 or above Upgrade to FortiSandbox version 4.2.7 or above Upgrade to FortiIsolator version 2.4.5 or above

Metrics

0.47% 0.00474

Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.

EPSS probability 0.00474

Score over time

2025–2026

EPSS v4
EPSS v5

Percentile over time

EPSS v4
EPSS v5

Table of values (3 key points)

Flat stretches are collapsed; showing up to 120 newest points.

Date	Score	Percentile	Model
Oct 1, 2026	0.47% (0.00474)	38.71th	v5 (v2026.06.15)
Jun 15, 2026	0.45% (0.00454)	35.85th	v5 (v2026.06.15)
Jul 18, 2025	0.07% (0.00069)	21.64th	v4 (v2025.03.14)

Weaknesses (1)

CWE-613

References (1)

https://fortiguard.fortinet.com/psirt/FG-IR-24-035
Vendor Advisory

Link	Providers	Tags
https://fortiguard.fortinet.com/psirt/FG-IR-24-035		Vendor Advisory

Change history (0)

No recorded changes yet.

Sources

CVE.org / MITRE

Status PUBLISHED

Assigner fortinet

Published Jul 18, 2025

Updated Feb 26, 2026

Reserved Feb 26, 2024

Link CVE-2024-27779

CISA Vulnrichment

Updated Jul 18, 2025

NVD

Status Analyzed

Modified Jun 17, 2026

Link CVE-2024-27779

Red Hat

Severity n/a

Public date n/a

Links CVE-2024-27779