CVE-2023-42789

Published Mar 12, 2024 CVSS 3.1 · 9.3 Critical EPSS 3.3% KEV · Not listed

Description

A out-of-bounds write vulnerability in Fortinet FortiOS 7.4.0 through 7.4.1, FortiOS 7.2.0 through 7.2.5, FortiOS 7.0.0 through 7.0.12, FortiOS 6.4.0 through 6.4.14, FortiOS 6.2.0 through 6.2.15, FortiProxy 7.4.0, FortiProxy 7.2.0 through 7.2.6, FortiProxy 7.0.0 through 7.0.12, FortiProxy 2.0.0 through 2.0.13, FortiSASE 23.2.b allows attacker to execute unauthorized code or commands via specially crafted HTTP requests.

Affected Products

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

FortiProxy

unaffected

Version	Status	Constraints
`7.4.0`	affected	—
`7.2.0`	affected	≤ 7.2.6
`7.0.0`	affected	≤ 7.0.12
`2.0.0`	affected	≤ 2.0.13

Fortinet

FortiSASE

unaffected

Version	Status	Constraints
`23.2.b`	affected	—

Fortinet

FortiOS

unaffected

Version	Status	Constraints
`7.4.0`	affected	≤ 7.4.1
`7.2.0`	affected	≤ 7.2.5
`7.0.0`	affected	≤ 7.0.12
`6.4.0`	affected	≤ 6.4.14
`6.2.0`	affected	≤ 6.2.15

Configuration 1 [-]

OR	cpe:2.3:a:fortinet:fortiproxy::::::::
	cpe:2.3:a:fortinet:fortiproxy::::::::
	cpe:2.3:a:fortinet:fortiproxy::::::::
	cpe:2.3:a:fortinet:fortiproxy:7.4.0:::::::*
	cpe:2.3:o:fortinet:fortios::::::::
	cpe:2.3:o:fortinet:fortios::::::::
	cpe:2.3:o:fortinet:fortios::::::::
	cpe:2.3:o:fortinet:fortios::::::::
	cpe:2.3:o:fortinet:fortios:7.4.0:::::::*
	cpe:2.3:o:fortinet:fortios:7.4.1:::::::*

No data.

No data available yet.

Remediation

Vendor Solution

Upgrade to FortiProxy version 7.4.1 or above Upgrade to FortiProxy version 7.2.7 or above Upgrade to FortiProxy version 7.0.13 or above Upgrade to FortiProxy version 2.0.14 or above Upgrade to FortiSwitchManager version 7.2.3 or above Upgrade to FortiSwitchManager version 7.0.3 or above Fortinet remediated this issue in FortiSASE version 23.3.b and hence customers do not need to perform any action. Upgrade to FortiOS version 7.4.2 or above Upgrade to FortiOS version 7.2.6 or above Upgrade to FortiOS version 7.0.13 or above Upgrade to FortiOS version 6.4.15 or above Upgrade to FortiOS version 6.2.16 or above Upgrade to FortiPAM version 1.2.0 or above

Tracking

Advisories

No advisories available

Metrics

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploit prediction score: 3.3% (3.306% probability within 30 days)

Exploitation none

Automatable yes

Technical Impact total

References

Link	Providers
https://fortiguard.com/psirt/FG-IR-23-328

History

Jul 8, 2026 1:30 PM First appearance in the feed. Affected versions updated. Affected vendors updated. Scoring metrics updated View changes

Type	Values Removed	Values Added
First Time appeared		Fortinet fortipam
CPEs		cpe:2.3:o:fortinet:fortipam::::::::
Vendors & Products		Fortinet fortipam
Metrics		ssvc `{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}`

Jul 8, 2026 1:00 PM Description updated. First appearance in the feed. Affected versions updated. Affected vendors updated. Scoring metrics updated View changes

Type	Values Removed	Values Added
Description	A out-of-bounds write in Fortinet FortiOS 7.4.0 through 7.4.1, 7.2.0 through 7.2.5, 7.0.0 through 7.0.12, 6.4.0 through 6.4.14, 6.2.0 through 6.2.15, FortiProxy 7.4.0, 7.2.0 through 7.2.6, 7.0.0 through 7.0.12, 2.0.0 through 2.0.13 allows attacker to execute unauthorized code or commands via specially crafted HTTP requests.	A out-of-bounds write vulnerability in Fortinet FortiOS 7.4.0 through 7.4.1, FortiOS 7.2.0 through 7.2.5, FortiOS 7.0.0 through 7.0.12, FortiOS 6.4.0 through 6.4.14, FortiOS 6.2.0 through 6.2.15, FortiProxy 7.4.0, FortiProxy 7.2.0 through 7.2.6, FortiProxy 7.0.0 through 7.0.12, FortiProxy 2.0.0 through 2.0.13, FortiSASE 23.2.b allows attacker to execute unauthorized code or commands via specially crafted HTTP requests.
First Time appeared		Fortinet fortisase
CPEs		cpe:2.3:a:fortinet:fortiproxy:2.0.0:::::::* cpe:2.3:a:fortinet:fortiproxy:2.0.10:::::::* cpe:2.3:a:fortinet:fortiproxy:2.0.11:::::::* cpe:2.3:a:fortinet:fortiproxy:2.0.12:::::::* cpe:2.3:a:fortinet:fortiproxy:2.0.13:::::::* cpe:2.3:a:fortinet:fortiproxy:2.0.1:::::::* cpe:2.3:a:fortinet:fortiproxy:2.0.2:::::::* cpe:2.3:a:fortinet:fortiproxy:2.0.3:::::::* cpe:2.3:a:fortinet:fortiproxy:2.0.4:::::::* cpe:2.3:a:fortinet:fortiproxy:2.0.5:::::::* cpe:2.3:a:fortinet:fortiproxy:2.0.6:::::::* cpe:2.3:a:fortinet:fortiproxy:2.0.7:::::::* cpe:2.3:a:fortinet:fortiproxy:2.0.8:::::::* cpe:2.3:a:fortinet:fortiproxy:2.0.9:::::::* cpe:2.3:a:fortinet:fortiproxy:7.0.0:::::::* cpe:2.3:a:fortinet:fortiproxy:7.0.10:::::::* cpe:2.3:a:fortinet:fortiproxy:7.0.11:::::::* cpe:2.3:a:fortinet:fortiproxy:7.0.12:::::::* cpe:2.3:a:fortinet:fortiproxy:7.0.1:::::::* cpe:2.3:a:fortinet:fortiproxy:7.0.2:::::::* cpe:2.3:a:fortinet:fortiproxy:7.0.3:::::::* cpe:2.3:a:fortinet:fortiproxy:7.0.4:::::::* cpe:2.3:a:fortinet:fortiproxy:7.0.5:::::::* cpe:2.3:a:fortinet:fortiproxy:7.0.6:::::::* cpe:2.3:a:fortinet:fortiproxy:7.0.7:::::::* cpe:2.3:a:fortinet:fortiproxy:7.0.8:::::::* cpe:2.3:a:fortinet:fortiproxy:7.0.9:::::::* cpe:2.3:a:fortinet:fortiproxy:7.2.0:::::::* cpe:2.3:a:fortinet:fortiproxy:7.2.1:::::::* cpe:2.3:a:fortinet:fortiproxy:7.2.2:::::::* cpe:2.3:a:fortinet:fortiproxy:7.2.3:::::::* cpe:2.3:a:fortinet:fortiproxy:7.2.4:::::::* cpe:2.3:a:fortinet:fortiproxy:7.2.5:::::::* cpe:2.3:a:fortinet:fortiproxy:7.2.6:::::::* cpe:2.3:a:fortinet:fortisase:23.2.b:::::::* cpe:2.3:o:fortinet:fortios:6.2.0:::::::* cpe:2.3:o:fortinet:fortios:6.2.10:::::::* cpe:2.3:o:fortinet:fortios:6.2.11:::::::* cpe:2.3:o:fortinet:fortios:6.2.12:::::::* cpe:2.3:o:fortinet:fortios:6.2.13:::::::* cpe:2.3:o:fortinet:fortios:6.2.14:::::::* cpe:2.3:o:fortinet:fortios:6.2.15:::::::* cpe:2.3:o:fortinet:fortios:6.2.1:::::::* cpe:2.3:o:fortinet:fortios:6.2.2:::::::* cpe:2.3:o:fortinet:fortios:6.2.3:::::::* cpe:2.3:o:fortinet:fortios:6.2.4:::::::* cpe:2.3:o:fortinet:fortios:6.2.5:::::::* cpe:2.3:o:fortinet:fortios:6.2.6:::::::* cpe:2.3:o:fortinet:fortios:6.2.7:::::::* cpe:2.3:o:fortinet:fortios:6.2.8:::::::* cpe:2.3:o:fortinet:fortios:6.2.9:::::::* cpe:2.3:o:fortinet:fortios:6.4.0:::::::* cpe:2.3:o:fortinet:fortios:6.4.10:::::::* cpe:2.3:o:fortinet:fortios:6.4.11:::::::* cpe:2.3:o:fortinet:fortios:6.4.12:::::::* cpe:2.3:o:fortinet:fortios:6.4.13:::::::* cpe:2.3:o:fortinet:fortios:6.4.14:::::::* cpe:2.3:o:fortinet:fortios:6.4.1:::::::* cpe:2.3:o:fortinet:fortios:6.4.2:::::::* cpe:2.3:o:fortinet:fortios:6.4.3:::::::* cpe:2.3:o:fortinet:fortios:6.4.4:::::::* cpe:2.3:o:fortinet:fortios:6.4.5:::::::* cpe:2.3:o:fortinet:fortios:6.4.6:::::::* cpe:2.3:o:fortinet:fortios:6.4.7:::::::* cpe:2.3:o:fortinet:fortios:6.4.8:::::::* cpe:2.3:o:fortinet:fortios:6.4.9:::::::* cpe:2.3:o:fortinet:fortios:7.0.0:::::::* cpe:2.3:o:fortinet:fortios:7.0.10:::::::* cpe:2.3:o:fortinet:fortios:7.0.11:::::::* cpe:2.3:o:fortinet:fortios:7.0.12:::::::* cpe:2.3:o:fortinet:fortios:7.0.1:::::::* cpe:2.3:o:fortinet:fortios:7.0.2:::::::* cpe:2.3:o:fortinet:fortios:7.0.3:::::::* cpe:2.3:o:fortinet:fortios:7.0.4:::::::* cpe:2.3:o:fortinet:fortios:7.0.5:::::::* cpe:2.3:o:fortinet:fortios:7.0.6:::::::* cpe:2.3:o:fortinet:fortios:7.0.7:::::::* cpe:2.3:o:fortinet:fortios:7.0.8:::::::* cpe:2.3:o:fortinet:fortios:7.0.9:::::::* cpe:2.3:o:fortinet:fortios:7.2.0:::::::* cpe:2.3:o:fortinet:fortios:7.2.1:::::::* cpe:2.3:o:fortinet:fortios:7.2.2:::::::* cpe:2.3:o:fortinet:fortios:7.2.3:::::::* cpe:2.3:o:fortinet:fortios:7.2.4:::::::* cpe:2.3:o:fortinet:fortios:7.2.5:::::::*
Vendors & Products		Fortinet fortisase
Metrics	cvssV3_1 `{'score': 9.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:U/RC:C'}`	cvssV3_1 `{'score': 9.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C'}`