Medium severity · published Dec 9, 2025
CVE-2025-41693
Authenticated Denial-of-Service via SSH
4.3
CVSS
0.5%
EPSS
No
On KEV
Description
A low privileged remote attacker can use the ssh feature to execute commands directly after login. The process stays open and uses resources which leads to a reduced performance of the management functions. Switching functionality is not affected.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
None
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 44% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FS
FL SWITCH 2005 · Phoenix Contact
0.0.0 before 3.50 · source: vendor
FS
FL SWITCH 2008 · Phoenix Contact
0.0.0 before 3.50 · source: vendor
FS
FL SWITCH 2016 · Phoenix Contact
0.0.0 before 3.50 · source: vendor
FS
FL SWITCH 2105 · Phoenix Contact
0.0.0 before 3.50 · source: vendor
FS
FL SWITCH 2108 · Phoenix Contact
0.0.0 before 3.50 · source: vendor
FS
FL SWITCH 2116 · Phoenix Contact
0.0.0 before 3.50 · source: vendor
FS
FL SWITCH 2204-2TC-2SFX · Phoenix Contact
0.0.0 before 3.50 · source: vendor
FS
FL SWITCH 2205 · Phoenix Contact
0.0.0 before 3.50 · source: vendor
FS
FL SWITCH 2206-2FX · Phoenix Contact
0.0.0 before 3.50 · source: vendor
FS
FL SWITCH 2206-2FX SM · Phoenix Contact
0.0.0 before 3.50 · source: vendor
FS
FL SWITCH 2206-2FX SM ST · Phoenix Contact
0.0.0 before 3.50 · source: vendor
FS
FL SWITCH 2206-2FX ST · Phoenix Contact
0.0.0 before 3.50 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-41693
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-41693
Third Party Advisory
https://certvde.com/de/advisories/VDE-2025-071
More from FL SWITCH 2005
7.2
CVE-2026-22317
Command Injection Vulnerability in Root CA Certificate Transfer Workflow
7.1
CVE-2026-22323
Cross‑Site Request Forgery in Link Aggregation Configuration
7.1
CVE-2026-22322
Stored Cross‑Site Scripting in Link Aggregation Name Handling
7.1
CVE-2025-41695
Reflected XSS vulnerability in dyn_conn.php
7.1
CVE-2025-41745
Reflected XSS vulnerability in pxc_portCntr2.php