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Medium severity · published Oct 14, 2025
CVE-2025-58903
An Unchecked Return Value vulnerability [CWE-252] in Fortinet FortiOS version 7.6.0 through 7.6.3 and before 7.4.8 API allows an authenticated user to cause a Null Pointer…
4.9
CVSS
0.6%
EPSS
No
On KEV
Description
An Unchecked Return Value vulnerability [CWE-252] in Fortinet FortiOS version 7.6.0 through 7.6.3 and before 7.4.8 API allows an authenticated user to cause a Null Pointer Dereference, crashing the http daemon via a specialy crafted request.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.6% · higher than 50% 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 through 7.6.3; 7.4.0 through 7.4.8; 7.2.0 through 7.2.12; 7.0.0 through 7.0.18; 6.4.0 through 6.4.16 · source: vendor, NVD
RA
RUGGEDCOM APE1808 · Siemens
0 · source: CISA
Affected product
FO
FortiOS
Fortinet
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-58903
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-58903
Vendor Advisory
https://fortiguard.fortinet.com/psirt/FG-IR-25-653
cert-portal.siemens.com
https://cert-portal.siemens.com/productcert/html/ssa-864900.html
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