High severity · published Oct 10, 2023
CVE-2023-40718
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
7.5
CVSS
0.5%
EPSS
No
On KEV
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 vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 45% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FI
Fortios Ips Engine · Fortinet
through 7.312; through 7.165; through 6.158 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-40718
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-40718
Vendor Advisory
https://fortiguard.com/psirt/FG-IR-23-090
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