CVE-2023-40718 — HIGH (7.5)

Q: What is CVE-2023-40718?

CVE-2023-40718 is a vulnerability with a CVSS score of 7.5 (HIGH). 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.

Q: How severe is CVE-2023-40718?

CVE-2023-40718 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2023-40718?

Check the references section above for vendor advisories and patch information. Affected products include: Fortinet Fortios Ips Engine, Fortinet Fortios.

Vulnerability Description

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.

CVSS Score

7.5

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

HIGH

Availability

NONE

Affected Products

Vendor	Product	Versions
Fortinet	Fortios Ips Engine	<= 7.312
Fortinet	Fortios	>= 7.2.0, < 7.2.4

Related Weaknesses (CWE)

CWE-436

References

https://fortiguard.com/psirt/FG-IR-23-090Vendor Advisory
https://fortiguard.com/psirt/FG-IR-23-090Vendor Advisory

FAQ

What is CVE-2023-40718?

CVE-2023-40718 is a vulnerability with a CVSS score of 7.5 (HIGH). 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.

How severe is CVE-2023-40718?

CVE-2023-40718 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2023-40718?

Check the references section above for vendor advisories and patch information. Affected products include: Fortinet Fortios Ips Engine, Fortinet Fortios.