CVE-2026-22317: Phoenix Contact FL SWITCH 2005 · Command Injection
Affects Phoenix Contact FL SWITCH 2005Source CVE Database V5
Not known to be exploited · CVSS 7.2 High : upgrade to 3.53 soon.
Data as of 31 Oct 2026, 20:20 UTC
- EPSS
- 1.0% chance of exploitation in 30 days – higher than 63% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 3.53
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 18 Mar 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 31 Oct 2026.
What to do
Upgrade FL to 3.53.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Phoenix ContactFL SWITCH 2005 | Affected
| Fixed in
|
| Phoenix ContactFL SWITCH 2008 | Affected
| Fixed in
|
| Phoenix ContactFL SWITCH 2016 | Affected
| Fixed in
|
| Phoenix ContactFL SWITCH 2105 | Affected
| Fixed in
|
| Phoenix ContactFL SWITCH 2108 | Affected
| Fixed in
|
| Phoenix ContactFL SWITCH 2116 | Affected
| Fixed in
|
AI-suggested
- Immediately restrict access to the FL SWITCH 2005 management interfaces to trusted administrators only, using network segmentation and access control lists.
- Monitor network traffic for unusual HTTP POST requests targeting the Root CA certificate transfer workflow to detect potential exploitation attempts.
- Employ strict input validation and sanitization on any interfaces interacting with certificate management workflows, if custom configurations are possible.
- Implement multi-factor authentication and strong credential management to reduce the risk of privilege escalation to high-privileged accounts.
- Regularly audit device configurations and logs for signs of compromise or anomalous command executions.
- Engage with Phoenix Contact for official patches or firmware updates addressing this vulnerability and apply them promptly once available.
- Consider deploying network-based intrusion detection/prevention systems (IDS/IPS) with signatures tuned to detect exploitation attempts targeting this vulnerability.
- Develop and test incident response plans specific to industrial control system compromises involving network devices.
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.