High severity · published Oct 14, 2025
CVE-2025-57740
An Heap-based Buffer Overflow vulnerability [CWE-122] in FortiOS version 7.6.2 and below, version 7.4.7 and below, version 7.2.10 and below, 7.0 all versions, 6.4 all versions;…
8.8
CVSS
0.7%
EPSS
No
On KEV
Description
An Heap-based Buffer Overflow vulnerability [CWE-122] in FortiOS version 7.6.2 and below, version 7.4.7 and below, version 7.2.10 and below, 7.0 all versions, 6.4 all versions; FortiPAM version 1.5.0, version 1.4.2 and below, 1.3 all versions, 1.2 all versions, 1.1 all versions, 1.0 all versions and FortiProxy version 7.6.2 and below, version 7.4.3 and below, 7.2 all versions, 7.0 all versions RDP bookmark connection may allow an authenticated user to execute unauthorized code via crafted requests.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.7% · higher than 52% 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 7.6.2; 7.4.0 through 7.4.7; 7.2.0 through 7.2.10; 7.0.0 through 7.0.18; 6.4.0 through 6.4.16 · source: vendor, NVD
FO
FortiPAM · Fortinet
1.5.0; 1.4.0 through 1.4.2; 1.3.0 through 1.3.1; 1.2.0; 1.1.0 through 1.1.2; 1.0.0 through 1.0.3 · source: vendor, NVD
FO
FortiProxy · Fortinet
7.6.0 through 7.6.2; 7.4.0 through 7.4.3; 7.2.0 through 7.2.15; 7.0.0 through 7.0.22 · source: vendor, NVD
RA
RUGGEDCOM APE1808 · Siemens
0 · source: CISA
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-57740
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-57740
Vendor Advisory
https://fortiguard.fortinet.com/psirt/FG-IR-25-756
cert-portal.siemens.com
https://cert-portal.siemens.com/productcert/html/ssa-864900.html
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