Medium severity · published Jul 8, 2025
CVE-2024-55599
An Improperly Implemented Security Check for Standard vulnerability [CWE-358] in FortiOS version 7.6.0, version 7.4.7 and below, 7.0 all versions, 6.4 all versions and FortiProxy…
5.3
CVSS
0.4%
EPSS
No
On KEV
Description
An Improperly Implemented Security Check for Standard vulnerability [CWE-358] in FortiOS version 7.6.0, version 7.4.7 and below, 7.0 all versions, 6.4 all versions and FortiProxy version 7.6.1 and below, version 7.4.8 and below, 7.2 all versions, 7.0 all versions may allow a remote unauthenticated user to bypass the DNS filter via Apple devices.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
Low
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 34% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FO
FortiOS · Fortinet
7.6.0; 7.4.0 through 7.4.7; 7.2.0 through 7.2.10; 7.0.0 through 7.0.17; 6.4.0 through 6.4.16 · source: vendor, NVD
FO
FortiProxy · Fortinet
7.6.0 through 7.6.1; 7.4.0 through 7.4.8; 7.2.0 through 7.2.14; 7.0.0 through 7.0.21 · source: vendor, NVD
FO
Fortisase · Fortinet
24.4.32 · source: NVD
RA
RUGGEDCOM APE1808 · Siemens
0 · source: CISA
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2024-55599
CVE.org
https://www.cve.org/CVERecord?id=CVE-2024-55599
Vendor Advisory
https://fortiguard.fortinet.com/psirt/FG-IR-24-053
cert-portal.siemens.com
https://cert-portal.siemens.com/productcert/html/ssa-864900.html
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