TI-2021-17884 Aliases CVE-2021-41020 GHSA-v9h9-p74g-4ccw

An improper access control vulnerability [CWE-284] in FortiIsolator versions 2.3.2 and…

MEDIUM 41Published 2022-05-04 · Updated 2024-10-25

Key facts

Attack vector: Network
Privileges required: Low
User interaction: None
Attack complexity: Low
Impact type: —
Confidentiality · integrity · availability: High · High · High
Fix status: No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA.

Summary

An improper access control vulnerability [CWE-284] in FortiIsolator versions 2.3.2 and below may allow an authenticated, non privileged attacker to regenerate the CA certificate via the regeneration URL.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00606 49th percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Fortinet	Fortinet FortiIsolator	FortiIsolator 2.3.2, 2.3.1, 2.3.0	—	No fix listed	CNA

Fortinet FortiIsolator VendorFortinet Affected FortiIsolator 2.3.2, 2.3.1, 2.3.0 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:fortinet:fortiisolator::::::::	2.3.0 to before 2.3.3	Vulnerable	Fortinet

cpe:2.3:a:fortinet:fortiisolator:*:*:*:*:*:*:*:* Versions 2.3.0 to before 2.3.3 Vulnerable ·Fortinet

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2021-41020
2026-10-03 Alias added: GHSA-v9h9-p74g-4ccw

References

Advisory 1

https://fortiguard.com/psirt/FG-IR-21-040

TI-2020-05468 Insufficient session expiration in Fortinet FortiIsolator CVSS 3.1CRITICAL 9.8
TI-2024-36903 OS command injection in Fortinet FortiIsolator CVSS 3.1HIGH 8.6
TI-2024-22100 Insufficient session expiration in Fortinet FortiIsolator CVSS 3.1CRITICAL 9.1
TI-2022-06628 OS command injection in Fortinet FortiIsolator CVSS 3.1HIGH 7.8
TI-2024-36177 OS command injection in Fortinet FortiIsolator CVSS 3.1HIGH 7.0
TI-2024-36178 OS command injection in Fortinet FortiIsolator CVSS 3.1MEDIUM 6.5

See all 9 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences