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CVE-2023-40718

A interpretation conflict in Fortinet IPS Engine versions 7.321, 7.166 and 6.158 allows attacker...

6.7 Medium

CVE-2023-40718 is a medium vulnerability (CVSS 6.7) in Fortinet Ips Engine, published October 10, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.53%, the 45th percentile. No source names a fixed version.

What does this mean?
Severity
6.7 MediumCVSS 3.1, CVE List
Exploit chance
0.53%EPSS, 45th percentile
Exploitation
None knownNot on CISA’s or ENISA’s lists
Fixed in
No fix listedNo source names one

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.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
None
Integrity
High
Availability
None

Exploit likelihood

0.53%Up 0.5 points since Oct 11, 2023
90%50%10%1%

Affected products

What each source reports

CVE List Score used6.7

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.

Record
CVE-2023-40718
CVSS 3.1
6.7 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N/E:F/RL:O/RC:R
Weakness
CWE-436
Updated
2026-11-02
EUVDEUVD-2023-452726.7

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.

Record
EUVD-2023-45272
CVSS 3.1
6.7 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N/E:F/RL:O/RC:R
Updated
2026-11-03
GitHub AdvisoriesGHSA-hgv6-x3p4-q38v7.5

A interpretation conflict in Fortinet IPS Engine versions 7.321, 7.166 and 6.158 allows attacker...

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.

Record
GHSA-hgv6-x3p4-q38v
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Weakness
CWE-436
Updated
2026-11-02
NVD7.5

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.

Record
CVE-2023-40718
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Weakness
CWE-436
Updated
2026-11-02

History

History
RecordedChangedSources
aliases, publishedEUVD
first indexedCVE List, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

References

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