Description
A buffer copy without checking size of input ('classic buffer overflow') vulnerability in Fortinet FortiClientWindows 7.4.0 through 7.4.3, FortiClientWindows 7.2.0 through 7.2.11 may allow an unauthenticated attacker in a position to alter or craft DNS responses to the targeted host to execute arbitrary code via malicious packets.
Published: 2026-08-12
Score: 7.3 High
EPSS: < 1% Very Low
KEV: No
AI Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Remediation

Vendor Solution

Upgrade to FortiClientWindows version 7.4.4 or above Upgrade to FortiClientWindows version 7.2.12 or above

Tracking

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Advisories

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History

Tue, 08 Sep 2026 21:15:00 +0000

Type Values Removed Values Added
First Time appeared Fortinet forticlient
CPEs cpe:2.3:a:fortinet:forticlient:*:*:*:*:*:windows:*:*
Vendors & Products Fortinet forticlient

Thu, 13 Aug 2026 01:30:00 +0000

Type Values Removed Values Added
Title Unauthenticated DNS Buffer Overflow Enables Arbitrary Code Execution in FortiClientWindows

Wed, 12 Aug 2026 13:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

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

Wed, 12 Aug 2026 12:15:00 +0000

Type Values Removed Values Added
Description A buffer copy without checking size of input ('classic buffer overflow') vulnerability in Fortinet FortiClientWindows 7.4.0 through 7.4.3, FortiClientWindows 7.2.0 through 7.2.11 may allow an unauthenticated attacker in a position to alter or craft DNS responses to the targeted host to execute arbitrary code via malicious packets.
First Time appeared Fortinet
Fortinet forticlientwindows
Weaknesses CWE-120
CPEs cpe:2.3:a:fortinet:forticlientwindows:7.2.0:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:forticlientwindows:7.2.10:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:forticlientwindows:7.2.11:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:forticlientwindows:7.2.1:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:forticlientwindows:7.2.2:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:forticlientwindows:7.2.3:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:forticlientwindows:7.2.4:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:forticlientwindows:7.2.5:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:forticlientwindows:7.2.6:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:forticlientwindows:7.2.7:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:forticlientwindows:7.2.8:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:forticlientwindows:7.2.9:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:forticlientwindows:7.4.0:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:forticlientwindows:7.4.1:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:forticlientwindows:7.4.2:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:forticlientwindows:7.4.3:*:*:*:*:*:*:*
Vendors & Products Fortinet
Fortinet forticlientwindows
References
Metrics cvssV3_1

{'score': 7.3, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C'}

Subscriptions

Fortinet Forticlient Forticlientwindows
cve-icon MITRE

Status: PUBLISHED

Assigner: fortinet

Published:

Updated: 2026-08-13T03:55:27.282Z

Reserved: 2026-08-04T15:01:40.657Z

Link: CVE-2026-70465

cve-icon Vulnrichment

Updated: 2026-08-12T12:26:24.711Z

cve-icon NVD

Status : Analyzed

Published: 2026-08-12T12:19:47.017

Modified: 2026-09-08T21:03:37.110

Link: CVE-2026-70465

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-13T01:15:12Z

Weaknesses