A out-of-bounds write vulnerability in Fortinet FortiOS 7.6.0 through 7.6.3, FortiOS 7.4.0 through 7.4.8, FortiOS 7.2.0 through 7.2.11 allows attacker to execute unauthorized code or commands via specially crafted packets.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required Low

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.

No EPSS score available.

Exploitation none

Automatable no

Technical Impact total

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 FortiOS unaffected
Version Status Constraints
7.6.0 affected ≤ 7.6.3
7.4.0 affected ≤ 7.4.8
7.2.0 affected ≤ 7.2.11
7.0.0 affected ≤ 7.0.17
6.4.0 affected ≤ 6.4.16
6.2.0 affected ≤ 6.2.17
6.0.0 affected ≤ 6.0.18

No data.

No data.

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Vendors Products
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Fortios Subscribe

Project Subscriptions

Vendors Products
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Fortios Subscribe
Advisories

No advisories yet.

Fixes

Solution

Upgrade to FortiOS version 7.6.4 or above Upgrade to FortiOS version 7.4.9 or above Upgrade to FortiOS version 7.2.12 or above Upgrade to FortiOS version 7.0.18 or above Fortinet remediated this issue in FortiSASE version 25.3.a and hence customers do not need to perform any action. Upgrade to FortiSwitchManager version 7.2.7 or above Upgrade to FortiSwitchManager version 7.0.6 or above Fortinet remediated this issue in FortiEdgeCloud version 25.3 and hence customers do not need to perform any action.

Workaround

No workaround given by the vendor.

References
Link Providers
https://fortiguard.fortinet.com/psirt/FG-IR-26-123 cve-icon cve-icon
History

Tue, 12 May 2026 19:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

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

Tue, 12 May 2026 18:45:00 +0000

Type Values Removed Values Added
Title Out-of-Bounds Write in FortiOS Allows Remote Code Execution

Tue, 12 May 2026 17:30:00 +0000

Type Values Removed Values Added
Description A out-of-bounds write vulnerability in Fortinet FortiOS 7.6.0 through 7.6.3, FortiOS 7.4.0 through 7.4.8, FortiOS 7.2.0 through 7.2.11 allows attacker to execute unauthorized code or commands via specially crafted packets.
First Time appeared Fortinet
Fortinet fortios
Weaknesses CWE-787
CPEs cpe:2.3:o:fortinet:fortios:6.0.0:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:6.0.10:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:6.0.11:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:6.0.12:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:6.0.13:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:6.0.14:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:6.0.15:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:6.0.16:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:6.0.17:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:6.0.18:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:6.0.1:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:6.0.2:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:6.0.3:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:6.0.4:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:6.0.5:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:6.0.6:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:6.0.7:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:6.0.8:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:6.0.9:*:*:*:*:*:*:*
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:6.2.16:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:6.2.17:*:*:*:*:*:*:*
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:6.4.15:*:*:*:*:*:*:*
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:7.0.1:*:*:*:*:*:*:*
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:7.2.1:*:*:*:*:*:*:*
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:fortios:7.6.3:*:*:*:*:*:*:*
Vendors & Products Fortinet
Fortinet fortios
References
Metrics cvssV3_1

{'score': 8.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: fortinet

Published:

Updated: 2026-05-12T19:02:28.980Z

Reserved: 2025-07-10T08:53:33.015Z

Link: CVE-2025-53844

cve-icon Vulnrichment

Updated: 2026-05-12T19:02:24.868Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-05-12T18:16:35.983

Modified: 2026-05-12T18:57:02.307

Link: CVE-2025-53844

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-12T21:45:05Z

Weaknesses