High severity · published Mar 18, 2026
CVE-2026-22317
Command Injection Vulnerability in Root CA Certificate Transfer Workflow
7.2
CVSS
1%
EPSS
No
On KEV
Description
A command injection vulnerability in the device’s Root CA certificate transfer workflow allows a high-privileged attacker to send crafted HTTP POST requests that result in arbitrary command execution on the underlying Linux OS with root privileges.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.0% · higher than 64% 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 3.53 · source: vendor
FS
FL SWITCH 2008 · Phoenix Contact
0.0.0 before 3.53 · source: vendor
FS
FL SWITCH 2016 · Phoenix Contact
0.0.0 before 3.53 · source: vendor
FS
FL SWITCH 2105 · Phoenix Contact
0.0.0 before 3.53 · source: vendor
FS
FL SWITCH 2108 · Phoenix Contact
0.0.0 before 3.53 · source: vendor
FS
FL SWITCH 2116 · Phoenix Contact
0.0.0 before 3.53 · source: vendor
FS
FL SWITCH 2204-2TC-2SFX · Phoenix Contact
0.0.0 before 3.53 · source: vendor
FS
FL SWITCH 2205 · Phoenix Contact
0.0.0 before 3.53 · source: vendor
FS
FL SWITCH 2206-2FX · Phoenix Contact
0.0.0 before 3.53 · source: vendor
FS
FL SWITCH 2206-2FX SM · Phoenix Contact
0.0.0 before 3.53 · source: vendor
FS
FL SWITCH 2206-2FX SM ST · Phoenix Contact
0.0.0 before 3.53 · source: vendor
FS
FL SWITCH 2206-2FX ST · Phoenix Contact
0.0.0 before 3.53 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-22317
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-22317
certvde.com
https://certvde.com/de/advisories/VDE-2025-104
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