CVE-2021-24023
An improper input validation in FortiAI v1.4.0 and earlier may allow an authenticated user to...
An improper input validation in FortiAI v1.4.0 and earlier may allow an authenticated user to gain system shell access via a malicious payload in the "diagnose" command.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
An improper input validation in FortiAI v1.4.0 and earlier may allow an authenticated user to gain system shell access via a malicious payload in the "diagnose" command.
- Record
CVE-2021-24023- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
EUVDEUVD-2021-10943
An improper input validation in FortiAI v1.4.0 and earlier may allow an authenticated user to gain system shell access via a malicious payload in the "diagnose" command.
- Record
EUVD-2021-10943- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-pc5v-x22v-m3rr
An improper input validation in FortiAI v1.4.0 and earlier may allow an authenticated user to...
An improper input validation in FortiAI v1.4.0 and earlier may allow an authenticated user to gain system shell access via a malicious payload in the "diagnose" command.
- Record
GHSA-pc5v-x22v-m3rr- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-20
- Updated
- 2026-11-02
NVD
An improper input validation in FortiAI v1.4.0 and earlier may allow an authenticated user to gain system shell access via a malicious payload in the "diagnose" command.
- Record
CVE-2021-24023- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - CVSS 2.0
- 9.0 High
AV:N/AC:L/Au:S/C:C/I:C/A:C - Weakness
- CWE-78
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-24023 is a high vulnerability (CVSS 7.8) in Fortinet Fortiai, published June 3, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.75%, the 55th percentile. No source names a fixed version.