CVE-2026-22323
High
Description
A CSRF vulnerability in the Link Aggregation configuration interface allows an unauthenticated remote attacker to trick authenticated users into sending unauthorized POST requests to the device by luring them to a malicious webpage. This can silently alter the device’s configuration without the victim’s knowledge or consent. Availability impact was set to low because after a successful attack the device will automatically recover without external intervention.
SeverityHigh
CVSS7.1
Exploit probability—
ProductFL SWITCH 2005
PublishedMar 18, 2026
First seenMar 18, 2026
Weakness typeCWE-352Cross-site request forgery (CSRF)
How to fix
Update
- Phoenix Contact FL SWITCH 20053.53 or later
- Phoenix Contact FL SWITCH 20083.53 or later
- Phoenix Contact FL SWITCH 20163.53 or later
- Phoenix Contact FL SWITCH 21053.53 or later
- Phoenix Contact FL SWITCH 21083.53 or later
- Phoenix Contact FL SWITCH 21163.53 or later
- Phoenix Contact FL SWITCH 2204-2TC-2SFX3.53 or later
- Phoenix Contact FL SWITCH 22053.53 or later
- Phoenix Contact FL SWITCH 2206-2FX3.53 or later
- Phoenix Contact FL SWITCH 2206-2FX SM3.53 or later
- Phoenix Contact FL SWITCH 2206-2FX SM ST3.53 or later
- Phoenix Contact FL SWITCH 2206-2FX ST3.53 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Phoenix Contact FL SWITCH 2005 | v < 3.53 | 3.53 |
| Phoenix Contact FL SWITCH 2008 | v < 3.53 | 3.53 |
| Phoenix Contact FL SWITCH 2016 | v < 3.53 | 3.53 |
| Phoenix Contact FL SWITCH 2105 | v < 3.53 | 3.53 |
| Phoenix Contact FL SWITCH 2108 | v < 3.53 | 3.53 |
| Phoenix Contact FL SWITCH 2116 | v < 3.53 | 3.53 |
| Phoenix Contact FL SWITCH 2204-2TC-2SFX | v < 3.53 | 3.53 |
| Phoenix Contact FL SWITCH 2205 | v < 3.53 | 3.53 |
| Phoenix Contact FL SWITCH 2206-2FX | v < 3.53 | 3.53 |
| Phoenix Contact FL SWITCH 2206-2FX SM | v < 3.53 | 3.53 |
| Phoenix Contact FL SWITCH 2206-2FX SM ST | v < 3.53 | 3.53 |
| Phoenix Contact FL SWITCH 2206-2FX ST | v < 3.53 | 3.53 |
| Phoenix Contact FL SWITCH 2206-2SFX | v < 3.53 | 3.53 |
| Phoenix Contact FL SWITCH 2206-2SFX PN | v < 3.53 | 3.53 |
| Phoenix Contact FL SWITCH 2206C-2FX | v < 3.53 | 3.53 |
| Phoenix Contact FL SWITCH 2207-FX | v < 3.53 | 3.53 |
| Phoenix Contact FL SWITCH 2207-FX SM | v < 3.53 | 3.53 |
| Phoenix Contact FL SWITCH 2208 | v < 3.53 | 3.53 |
| Phoenix Contact FL SWITCH 2208 PN | v < 3.53 | 3.53 |
| Phoenix Contact FL SWITCH 2208C | v < 3.53 | 3.53 |
| Phoenix Contact FL SWITCH 2212-2TC-2SFX | v < 3.53 | 3.53 |
| Phoenix Contact FL SWITCH 2214-2FX | v < 3.53 | 3.53 |
| Phoenix Contact FL SWITCH 2214-2FX SM | v < 3.53 | 3.53 |
| Phoenix Contact FL SWITCH 2214-2SFX | v < 3.53 | 3.53 |
| Phoenix Contact FL SWITCH 2214-2SFX PN | v < 3.53 | 3.53 |
| Phoenix Contact FL SWITCH 2216 | v < 3.53 | 3.53 |
| Phoenix Contact FL SWITCH 2216 PN | v < 3.53 | 3.53 |
| Phoenix Contact FL SWITCH 2304-2GC-2SFP | v < 3.53 | 3.53 |
| Phoenix Contact FL SWITCH 2306-2SFP | v < 3.53 | 3.53 |
| Phoenix Contact FL SWITCH 2306-2SFP PN | v < 3.53 | 3.53 |
| Phoenix Contact FL SWITCH 2308 | v < 3.53 | 3.53 |
| Phoenix Contact FL SWITCH 2308 PN | v < 3.53 | 3.53 |
| Phoenix Contact FL SWITCH 2312-2GC-2SFP | v < 3.53 | 3.53 |
| Phoenix Contact FL SWITCH 2314-2SFP | v < 3.53 | 3.53 |
| Phoenix Contact FL SWITCH 2314-2SFP PN | v < 3.53 | 3.53 |
| Phoenix Contact FL SWITCH 2316 | v < 3.53 | 3.53 |
| Phoenix Contact FL SWITCH 2316 PN | v < 3.53 | 3.53 |
| Phoenix Contact FL SWITCH 2404-2TC-2SFX | v < 3.53 | 3.53 |
| Phoenix Contact FL SWITCH 2406-2SFX | v < 3.53 | 3.53 |
| Phoenix Contact FL SWITCH 2406-2SFX PN | v < 3.53 | 3.53 |
| Phoenix Contact FL SWITCH 2408 | v < 3.53 | 3.53 |
| Phoenix Contact FL SWITCH 2408 PN | v < 3.53 | 3.53 |
| Phoenix Contact FL SWITCH 2412-2TC-2SFX | v < 3.53 | 3.53 |
| Phoenix Contact FL SWITCH 2414-2SFX | v < 3.53 | 3.53 |
| Phoenix Contact FL SWITCH 2414-2SFX PN | v < 3.53 | 3.53 |
| Phoenix Contact FL SWITCH 2416 | v < 3.53 | 3.53 |
| Phoenix Contact FL SWITCH 2416 PN | v < 3.53 | 3.53 |
| Phoenix Contact FL SWITCH 2504-2GC-2SFP | v < 3.53 | 3.53 |
| Phoenix Contact FL SWITCH 2506-2SFP | v < 3.53 | 3.53 |
| Phoenix Contact FL SWITCH 2506-2SFP PN | v < 3.53 | 3.53 |
| Phoenix Contact FL SWITCH 2508 | v < 3.53 | 3.53 |
| Phoenix Contact FL SWITCH 2508 PN | v < 3.53 | 3.53 |
| Phoenix Contact FL SWITCH 2512-2GC-2SFP | v < 3.53 | 3.53 |
| Phoenix Contact FL SWITCH 2514-2SFP | v < 3.53 | 3.53 |
| Phoenix Contact FL SWITCH 2514-2SFP PN | v < 3.53 | 3.53 |
| Phoenix Contact FL SWITCH 2516 | v < 3.53 | 3.53 |
| Phoenix Contact FL SWITCH 2516 PN | v < 3.53 | 3.53 |
| Phoenix Contact FL SWITCH 2608 | v < 3.53 | 3.53 |
| Phoenix Contact FL SWITCH 2608 PN | v < 3.53 | 3.53 |
| Phoenix Contact FL SWITCH 2708 | v < 3.53 | 3.53 |
| Phoenix Contact FL SWITCH 2708 PN | v < 3.53 | 3.53 |
| Phoenix Contact FL SWITCH 2303-8SP1 | v < 3.53 | 3.53 |
| Phoenix Contact FL NAT 2008 | v < 3.53 | 3.53 |
| Phoenix Contact FL NAT 2208 | v < 3.53 | 3.53 |
| Phoenix Contact FL NAT 2304-2GC-2SFP | v < 3.53 | 3.53 |
| Phoenix Contact FL SWITCH 2008F | v < 3.53 | 3.53 |
| Phoenix Contact FL SWITCH 2316/K1 | v < 3.53 | 3.53 |
| Phoenix Contact FL SWITCH 2506-2SFP/K1 | v < 3.53 | 3.53 |
| Phoenix Contact FL SWITCH 2508/K1 | v < 3.53 | 3.53 |
| Phoenix Contact FL SWITCH TSN 2316 | v < 3.53 | 3.53 |
| Phoenix Contact FL SWITCH TSN 2312-2GC-2SFP | v < 3.53 | 3.53 |
| Phoenix Contact FL SWITCH TSN 2314-2SFP | v < 3.53 | 3.53 |
| Phoenix Contact FL SWITCH 5924-4GC | v < 3.53 | 3.53 |
| Phoenix Contact FL SWITCH 5916-8GC-4SFP+ | v < 3.53 | 3.53 |
| Phoenix Contact FL SWITCH 5924SFP-4GC | v < 3.53 | 3.53 |
| Phoenix Contact FL SWITCH 5924-4SFP+ | v < 3.53 | 3.53 |
| Phoenix Contact FL SWITCH 5916SFP-8GC-4SFP+ | v < 3.53 | 3.53 |
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