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01 Record

CVE-2021-24023

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.

HighPUBLISHEDCNA: fortinet
CNA base score7.8 CVSS v3.xCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

02 Description

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.

03 Exploitation and scoring

Exploitation
Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
SSVC decision
  • ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
  • AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
  • Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
0.75% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 54.5% of scored records. A rank, not a probability.
NVD base score
8.8 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD analysis status
Modified. NVD last modified this record on 2026-06-17.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2021-06-03 10:30Z5 YR AGO
Last updated
2024-10-25 13:57Z2 YR AGO
Reserved
2021-01-13
Assigning CNA
fortinet
Record state
PUBLISHED
Severity
High (CVSS 7.8)
CNA CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weaknesses
  • CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')Base
Data version
5.1
Document digest
d28040430153c0a0f5682bc20cd22c4c2713a142ddaa86c402c5a56472129977

05 Affected products

VendorProductVersionsPlatforms
FortinetFortinet FortiAIFortiAI 1.4.0 and earlier—

06 References