CVE-2023-40718

highpriority · track · 30EPSS 0.005 · 44 %ileDEEURUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.53% (44th) EPSS

CVSS 7.5 · high

Is it mine?

12 products

Check your exposure

Who says so?

6 sources

cnnvd · enisa_euvd · fstec_bdu · cisa_csaf_ot

EPSS · scored 2026-10-22

A interpretation conflict in Fortinet IPS Engine versions 7.321, 7.166 and 6.158 allows attacker to evade IPS features via crafted TCP packets.

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

A vendor fix is available.

FixedRUGGEDCOM APE1808siemens_psirt
Update Fortigate NGFW to V7.4.1. Contact customer support to receive patch and update information.
FixedRUGGEDCOM APE1808cisa_csaf_ot
Update Fortigate NGFW to V7.4.1. Contact customer support to receive patch and update information.

cvss

Technical severity, 0–10. One row per scoring source.

7.5

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.7–7.5

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:Nprimary · NVD / NIST USexploitability 3.9 · impact 3.6

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:Nsecondary · CISA US

v3.17.5highAV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:Nsecondary · FSTEC (BDU) RU

v3.16.7mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N/E:F/RL:O/RC:Rsecondary · ENISA EU

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:Nsecondary · psirt@fortinet.comexploitability 3.9 · impact 3.6

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:Nsecondary · Siemens ProductCERT DE

v3.16.9mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N/E:Usecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: yes · Technical Impact: partialcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-436USprimaryCWE-436USCWE-436USCWE-436US

affected products (12)

Products and version ranges known to be affected.

RUGGEDCOM APE1808all versionscisa_csaf_otUS
Siemens RUGGEDCOM APE1808≤ vers:all/*cisa_csaf_otUS
Fortinet IPS Engine≤ 6.158enisa_euvdEU
Fortinet IPS Engine≤ 7.166enisa_euvdEU
Fortinet IPS Engine≤ 7.321enisa_euvdEU
Fortinet Inc. FortiOS Ips Engine≤ 6.158fstec_bduRU
Fortinet Inc. FortiOS Ips Engine7.0 → 7.165fstec_bduRU
Fortinet Inc. FortiOS Ips Engine7.2 → 7.312fstec_bduRU
fortinet fortios ips engine≤ 6.158nvdUScpe:2.3:a:fortinet:fortios_ips_engine:*:*:*:*:*:*:*:*
fortinet fortios ips engine≤ 7.165nvdUScpe:2.3:a:fortinet:fortios_ips_engine:*:*:*:*:*:*:*:*
fortinet fortios ips engine≤ 7.312nvdUScpe:2.3:a:fortinet:fortios_ips_engine:*:*:*:*:*:*:*:*
Siemens RUGGEDCOM APE1808≤ vers:all/*siemens_psirtDE

advisories (2)

Vendor and ecosystem advisories describing this.

SSA-366067SSA-366067: Multiple Vulnerabilities in Fortigate NGFW Before V7.4.1 on RUGGEDCOM APE1808 Devices2024-03-12csaf · siemens_psirtDE
Fortinet has published information on vulnerabilities in FORTIOS. This advisory lists the related Siemens Industrial products. Siemens has released a new version for RUGGEDCOM APE1808 and recommends to update to the latest version. Siemens is preparing further fix versions and recommends specific countermeasures for products where fixes are not, or not yet available.
ICSA-24-074-11Siemens RUGGEDCOM APE1808 with Fortigate NGFW Devices2024-03-12icsa · cisa_csaf_otUS
Fortinet has published information on vulnerabilities in FORTIOS. This advisory lists the related Siemens Industrial products. Siemens has released a new version for RUGGEDCOM APE1808 and recommends to update to the latest version. Siemens is preparing further fix versions and recommends specific countermeasures for products where fixes are not, or not yet available.

also known as (5)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu cisa_csaf_ot nvd siemens_psirt NVD CVE.org MITRE

published 2023-10-10modified 2026-06-17

related (197)

Related entries.

ID	severity	EPSS	exploitable	published
CVE-2026-63030US	—OT critical	10.6% (96th)	KEV	2026-07-17
WordPress 6.9.x before 6.9.5 and 7.0.x before 7.0.2 is affected by a REST API batch endpoint route confusion issue which, combined with the author__not_in WP_Query SQL Injection (C…
CVE-2025-48384US	—OT critical	4.38% (91st)	KEV	2025-07-08
Git is a fast, scalable, distributed revision control system with an unusually rich command set that provides both high-level operations and full access to internals. When reading…
CVE-2021-40870US	critical9.8OT critical	93.0% (100th)	KEV	2021-09-13
An issue was discovered in Aviatrix Controller 6.x before 6.5-1804.1922. Unrestricted upload of a file with a dangerous type is possible, which allows an unauthenticated user to ex…
CVE-2025-25292US	critical9.8	65.1% (99th)	—	2025-03-12
ruby-saml provides security assertion markup language (SAML) single sign-on (SSO) for Ruby. An authentication bypass vulnerability was found in ruby-saml prior to versions 1.12.4 a…
CVE-2025-25291US	critical9.8	21.0% (98th)	—	2025-03-12
ruby-saml provides security assertion markup language (SAML) single sign-on (SSO) for Ruby. An authentication bypass vulnerability was found in ruby-saml prior to versions 1.12.4 a…

+192 more

references (5)

External citations — patches, advisories, analysis.

scry

Attackers weaponise vulnerabilities like this against internet-exposed services. See what is exposed on your perimeter with a free passive scan.

Free scan