High severity · published Sep 8, 2025
CVE-2025-41664
Improper Permission Handling Enables Unauthorized Access to Firmware and Certificates
7.5
CVSS
0.2%
EPSS
No
On KEV
Description
A low-privileged remote attacker could gain unauthorized access to critical resources, such as firmware and certificates, due to improper permission handling during the runtime of services (e.g., FTP/SFTP). This access could allow the attacker to escalate privileges and modify firmware.
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
High
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 16% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
C0
Coupler 0750-0362 · WAGO
before FW13 · source: vendor
C0
Coupler 0750-0362/0000-0001 · WAGO
before FW13 · source: vendor
C0
Coupler 0750-0362/0040-0000 · WAGO
before FW13 · source: vendor
C0
Coupler 0750-0362/K013-1080 · WAGO
before FW13 · source: vendor
C0
Coupler 0750-0362/K019-7576 · WAGO
before FW13 · source: vendor
C0
Coupler 0750-0363 · WAGO
before FW13 · source: vendor
C0
Coupler 0750-0363/0040-0000 · WAGO
before FW13 · source: vendor
C0
Coupler 0750-0364/0040-0010 · WAGO
before FW13 · source: vendor
C0
Coupler 0750-0365/0040-0010 · WAGO
before FW13 · source: vendor
C0
Coupler 0750-0366 · WAGO
before FW13 · source: vendor