Description
A stack-based buffer overflow in the CLI's TFTP file‑transfer command handling allows a low-privileged attacker with Telnet/SSH access to trigger memory corruption by supplying unexpected or oversized filename input. Exploitation results in the corruption of the internal buffer, causing the CLI and web dashboard to become unavailable and leading to a denial of service.
Metrics
CVSS 3.1 6.5/10
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HWeakness enumeration
Affected software
Source: the vendor's advisory (CNA). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| Phoenix Contact | FL SWITCH 2005 | >= 0.0.0, < 3.53 |
| Phoenix Contact | FL SWITCH 2008 | >= 0.0.0, < 3.53 |
| Phoenix Contact | FL SWITCH 2016 | >= 0.0.0, < 3.53 |
| Phoenix Contact | FL SWITCH 2105 | >= 0.0.0, < 3.53 |
| Phoenix Contact | FL SWITCH 2108 | >= 0.0.0, < 3.53 |
| Phoenix Contact | FL SWITCH 2116 | >= 0.0.0, < 3.53 |
| Phoenix Contact | FL SWITCH 2204-2TC-2SFX | >= 0.0.0, < 3.53 |
| Phoenix Contact | FL SWITCH 2205 | >= 0.0.0, < 3.53 |
| Phoenix Contact | FL SWITCH 2206-2FX | >= 0.0.0, < 3.53 |
| Phoenix Contact | FL SWITCH 2206-2FX SM | >= 0.0.0, < 3.53 |
| Phoenix Contact | FL SWITCH 2206-2FX SM ST | >= 0.0.0, < 3.53 |
| Phoenix Contact | FL SWITCH 2206-2FX ST | >= 0.0.0, < 3.53 |
| Phoenix Contact | FL SWITCH 2206-2SFX | >= 0.0.0, < 3.53 |
| Phoenix Contact | FL SWITCH 2206-2SFX PN | >= 0.0.0, < 3.53 |
| Phoenix Contact | FL SWITCH 2206C-2FX | >= 0.0.0, < 3.53 |
| Phoenix Contact | FL SWITCH 2207-FX | >= 0.0.0, < 3.53 |
| Phoenix Contact | FL SWITCH 2207-FX SM | >= 0.0.0, < 3.53 |
| Phoenix Contact | FL SWITCH 2208 | >= 0.0.0, < 3.53 |
| Phoenix Contact | FL SWITCH 2208 PN | >= 0.0.0, < 3.53 |
| Phoenix Contact | FL SWITCH 2208C | >= 0.0.0, < 3.53 |
| Phoenix Contact | FL SWITCH 2212-2TC-2SFX | >= 0.0.0, < 3.53 |
| Phoenix Contact | FL SWITCH 2214-2FX | >= 0.0.0, < 3.53 |
| Phoenix Contact | FL SWITCH 2214-2FX SM | >= 0.0.0, < 3.53 |
| Phoenix Contact | FL SWITCH 2214-2SFX | >= 0.0.0, < 3.53 |
| Phoenix Contact | FL SWITCH 2214-2SFX PN | >= 0.0.0, < 3.53 |
| Phoenix Contact | FL SWITCH 2216 | >= 0.0.0, < 3.53 |
| Phoenix Contact | FL SWITCH 2216 PN | >= 0.0.0, < 3.53 |
| Phoenix Contact | FL SWITCH 2304-2GC-2SFP | >= 0.0.0, < 3.53 |
| Phoenix Contact | FL SWITCH 2306-2SFP | >= 0.0.0, < 3.53 |
| Phoenix Contact | FL SWITCH 2306-2SFP PN | >= 0.0.0, < 3.53 |
| Phoenix Contact | FL SWITCH 2308 | >= 0.0.0, < 3.53 |
| Phoenix Contact | FL SWITCH 2308 PN | >= 0.0.0, < 3.53 |
| Phoenix Contact | FL SWITCH 2312-2GC-2SFP | >= 0.0.0, < 3.53 |
| Phoenix Contact | FL SWITCH 2314-2SFP | >= 0.0.0, < 3.53 |
| Phoenix Contact | FL SWITCH 2314-2SFP PN | >= 0.0.0, < 3.53 |
| Phoenix Contact | FL SWITCH 2316 | >= 0.0.0, < 3.53 |
| Phoenix Contact | FL SWITCH 2316 PN | >= 0.0.0, < 3.53 |
| Phoenix Contact | FL SWITCH 2404-2TC-2SFX | >= 0.0.0, < 3.53 |
| Phoenix Contact | FL SWITCH 2406-2SFX | >= 0.0.0, < 3.53 |
| Phoenix Contact | FL SWITCH 2406-2SFX PN | >= 0.0.0, < 3.53 |
| Phoenix Contact | FL SWITCH 2408 | >= 0.0.0, < 3.53 |
| Phoenix Contact | FL SWITCH 2408 PN | >= 0.0.0, < 3.53 |
| Phoenix Contact | FL SWITCH 2412-2TC-2SFX | >= 0.0.0, < 3.53 |
| Phoenix Contact | FL SWITCH 2414-2SFX | >= 0.0.0, < 3.53 |
| Phoenix Contact | FL SWITCH 2414-2SFX PN | >= 0.0.0, < 3.53 |
| Phoenix Contact | FL SWITCH 2416 | >= 0.0.0, < 3.53 |
| Phoenix Contact | FL SWITCH 2416 PN | >= 0.0.0, < 3.53 |
| Phoenix Contact | FL SWITCH 2504-2GC-2SFP | >= 0.0.0, < 3.53 |
| Phoenix Contact | FL SWITCH 2506-2SFP | >= 0.0.0, < 3.53 |
| Phoenix Contact | FL SWITCH 2506-2SFP PN | >= 0.0.0, < 3.53 |
References
Timeline
- Published
- Mar 18, 2026
- Last modified
- Jun 17, 2026
- NVD status
- Awaiting Analysis