CVE-2023-40718
HIGH
7.5
CVSS Score
Published: October 10, 2023 at 04:49 PM UTC
Updated: June 17, 2026 at 06:19 AM UTC
3 products affected across 1 vendorFortiOS Ips EngineFortiOSIPS Engine
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Severity
HIGH7.5
Exploit prediction
EPSS 0.5%
SSVC
No known exploit
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.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
v ≤ 6.158v ≤ 7.165v ≤ 7.166v ≤ 7.312v ≤ 7.321
fortinet-fortios (same device)
FortiOS· Fortinetdevice
80%All versions
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
References (1)
SSVC — Action Prioritization
SSVCNo known exploitAutomatablePartial impact
SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.
CVSS
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- NONE
- Integrity
- HIGH
- Availability
- NONE
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-436
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