CVE-2026-59840

Published Jul 14, 2026 CVSS 3.1 · 4.1 Medium EPSS < 1% KEV · Not listed
Description
A buffer over-read vulnerability in Fortinet FortiOS 7.6.0 through 7.6.3, FortiOS 7.4.0 through 7.4.8, FortiOS 7.2 all versions, FortiOS 7.0 all versions, FortiOS 6.4 all versions, FortiProxy 7.6.0 through 7.6.5, FortiProxy 7.4.0 through 7.4.13, FortiProxy 7.2 all versions, FortiProxy 7.0 all versions may allow attacker to information disclosure via <insert attack vector here>

Remediation

Vendor Solution

Upgrade to FortiOS version 7.6.4 or above Upgrade to FortiOS version 7.4.9 or above Fortinet remediated this issue in FortiSASE version 25.4.b and hence customers do not need to perform any action. Upgrade to FortiProxy version 7.6.6 or above Upgrade to FortiProxy version 7.4.14 or above

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Title Fortinet FortiOS and FortiProxy Buffer Over-read Exploit Allows Information Disclosure
Type Values Removed Values Added
Title Fortinet FortiOS and FortiProxy Buffer Over-read Exploit Allows Information Disclosure
Type Values Removed Values Added
Title Buffer Over-Read Vulnerability Allowing Information Disclosure in Fortinet FortiOS and FortiProxy
Type Values Removed Values Added
Title Buffer Over-Read Vulnerability Allowing Information Disclosure in Fortinet FortiOS and FortiProxy
Type Values Removed Values Added
Description A buffer over-read vulnerability in Fortinet FortiOS 7.6.0 through 7.6.2, FortiOS 7.4.0 through 7.4.8, FortiOS 7.2 all versions, FortiProxy 7.6.0 through 7.6.5, FortiProxy 7.4.0 through 7.4.13, FortiProxy 7.2 all versions may allow attacker to information disclosure via <insert attack vector here> A buffer over-read vulnerability in Fortinet FortiOS 7.6.0 through 7.6.3, FortiOS 7.4.0 through 7.4.8, FortiOS 7.2 all versions, FortiOS 7.0 all versions, FortiOS 6.4 all versions, FortiProxy 7.6.0 through 7.6.5, FortiProxy 7.4.0 through 7.4.13, FortiProxy 7.2 all versions, FortiProxy 7.0 all versions may allow attacker to information disclosure via <insert attack vector here>
CPEs cpe:2.3:o:fortinet:fortios:7.6.3:*:*:*:*:*:*:*
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description A buffer over-read vulnerability in Fortinet FortiOS 7.6.0 through 7.6.2, FortiOS 7.4.0 through 7.4.8, FortiOS 7.2 all versions, FortiProxy 7.6.0 through 7.6.5, FortiProxy 7.4.0 through 7.4.13, FortiProxy 7.2 all versions may allow attacker to information disclosure via <insert attack vector here>
First Time appeared Fortinet
Fortinet fortios
Fortinet fortipam
Fortinet fortiproxy
Fortinet fortiswitchmanager
Weaknesses CWE-126
CPEs 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:7.0.13:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiproxy:7.0.14:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiproxy:7.0.15:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiproxy:7.0.16:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiproxy:7.0.17:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiproxy:7.0.18:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiproxy:7.0.19:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiproxy:7.0.1:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiproxy:7.0.20:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiproxy:7.0.21:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiproxy:7.0.22:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiproxy:7.0.23:*:*:*:*:*:*:*
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:7.2.10:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiproxy:7.2.11:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiproxy:7.2.12:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiproxy:7.2.13:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiproxy:7.2.14:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiproxy:7.2.15:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiproxy:7.2.16:*:*:*:*:*:*:*
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:fortiproxy:7.2.7:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiproxy:7.2.8:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiproxy:7.2.9:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiproxy:7.4.0:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiproxy:7.4.10:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiproxy:7.4.11:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiproxy:7.4.12:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiproxy:7.4.13:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiproxy:7.4.1:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiproxy:7.4.2:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiproxy:7.4.3:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiproxy:7.4.4:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiproxy:7.4.5:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiproxy:7.4.6:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiproxy:7.4.7:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiproxy:7.4.8:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiproxy:7.4.9:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiproxy:7.6.0:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiproxy:7.6.1:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiproxy:7.6.2:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiproxy:7.6.3:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiproxy:7.6.4:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiproxy:7.6.5:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiswitchmanager:7.0.0:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiswitchmanager:7.0.1:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiswitchmanager:7.0.2:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiswitchmanager:7.0.3:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiswitchmanager:7.0.4:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiswitchmanager:7.0.5:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiswitchmanager:7.0.6:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiswitchmanager:7.2.0:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiswitchmanager:7.2.1:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiswitchmanager:7.2.2:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiswitchmanager:7.2.3:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiswitchmanager:7.2.4:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiswitchmanager:7.2.5:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiswitchmanager:7.2.6:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiswitchmanager:7.2.7:*:*:*:*:*:*:*
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:6.4.15:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:6.4.16:*:*:*:*:*:*:*
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:7.0.13:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:7.0.14:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:7.0.15:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:7.0.16:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:7.0.17:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:7.0.18:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:7.0.19:*:*:*:*:*:*:*
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:7.2.10:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:7.2.11:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:7.2.12:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:7.2.13:*:*:*:*:*:*:*
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:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:7.2.6:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:7.2.7:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:7.2.8:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:7.2.9:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:7.4.0:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:7.4.1:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:7.4.2:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:7.4.3:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:7.4.4:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:7.4.5:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:7.4.6:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:7.4.7:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:7.4.8:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:7.6.0:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:7.6.1:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:7.6.2:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortipam:1.0.0:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortipam:1.0.1:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortipam:1.0.2:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortipam:1.0.3:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortipam:1.1.0:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortipam:1.1.1:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortipam:1.1.2:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortipam:1.2.0:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortipam:1.3.0:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortipam:1.3.1:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortipam:1.4.0:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortipam:1.4.1:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortipam:1.4.2:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortipam:1.4.3:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortipam:1.5.0:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortipam:1.5.1:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortipam:1.6.0:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortipam:1.6.1:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortipam:1.6.2:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortipam:1.7.0:*:*:*:*:*:*:*
Vendors & Products Fortinet
Fortinet fortios
Fortinet fortipam
Fortinet fortiproxy
Fortinet fortiswitchmanager
References
Metrics cvssV3_1

{'score': 4.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:P/RL:O/RC:C'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
fortinet
Published
Updated
Oct 15, 2026, 1:23 AM
Reserved
Jul 7, 2026, 3:21 PM
Status
Modified
Published
Jul 14, 2026, 4:17 PM
Modified
Oct 24, 2026, 9:10 PM