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Medium 6.5Published Mar 18, 2026
CVE-2026-22320Stack-Based Buffer Overflow in TFTP File-Transfer Command Handling over CLI
Updated under an hour ago ()
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It affects Phoenix Contact FL SWITCH 2005 and 59 other products. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 6.5 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Weakness (CWE)
- CWE-121
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- CERTVDE
- NVD analysis
- Awaiting Analysis
- Record last updated
- Mar 18, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Phoenix Contact FL SWITCH 2005 phoenix_contact:fl_switch_2005 (from the name) | from 0.0.0 before 3.53 | CNA record |
Phoenix Contact FL SWITCH 2008 phoenix_contact:fl_switch_2008 (from the name) | from 0.0.0 before 3.53 | CNA record |
Phoenix Contact FL SWITCH 2016 phoenix_contact:fl_switch_2016 (from the name) | from 0.0.0 before 3.53 | CNA record |
Phoenix Contact FL SWITCH 2105 phoenix_contact:fl_switch_2105 (from the name) | from 0.0.0 before 3.53 | CNA record |
Phoenix Contact FL SWITCH 2108 phoenix_contact:fl_switch_2108 (from the name) | from 0.0.0 before 3.53 | CNA record |
Phoenix Contact FL SWITCH 2116 phoenix_contact:fl_switch_2116 (from the name) | from 0.0.0 before 3.53 | CNA record |
Phoenix Contact FL SWITCH 2204-2TC-2SFX phoenix_contact:fl_switch_2204_2tc_2sfx (from the name) | from 0.0.0 before 3.53 | CNA record |
Phoenix Contact FL SWITCH 2205 phoenix_contact:fl_switch_2205 (from the name) | from 0.0.0 before 3.53 | CNA record |
Phoenix Contact FL SWITCH 2206-2FX phoenix_contact:fl_switch_2206_2fx (from the name) | from 0.0.0 before 3.53 | CNA record |
Phoenix Contact FL SWITCH 2206-2FX SM phoenix_contact:fl_switch_2206_2fx_sm (from the name) | from 0.0.0 before 3.53 | CNA record |
Phoenix Contact FL SWITCH 2206-2FX SM ST phoenix_contact:fl_switch_2206_2fx_sm_st (from the name) | from 0.0.0 before 3.53 | CNA record |
Phoenix Contact FL SWITCH 2206-2FX ST phoenix_contact:fl_switch_2206_2fx_st (from the name) | from 0.0.0 before 3.53 | CNA record |
Phoenix Contact FL SWITCH 2206-2SFX phoenix_contact:fl_switch_2206_2sfx (from the name) | from 0.0.0 before 3.53 | CNA record |
Phoenix Contact FL SWITCH 2206-2SFX PN phoenix_contact:fl_switch_2206_2sfx_pn (from the name) | from 0.0.0 before 3.53 | CNA record |
Phoenix Contact FL SWITCH 2206C-2FX phoenix_contact:fl_switch_2206c_2fx (from the name) | from 0.0.0 before 3.53 | CNA record |
Phoenix Contact FL SWITCH 2207-FX phoenix_contact:fl_switch_2207_fx (from the name) | from 0.0.0 before 3.53 | CNA record |
Phoenix Contact FL SWITCH 2207-FX SM phoenix_contact:fl_switch_2207_fx_sm (from the name) | from 0.0.0 before 3.53 | CNA record |
Phoenix Contact FL SWITCH 2208 phoenix_contact:fl_switch_2208 (from the name) | from 0.0.0 before 3.53 | CNA record |
Phoenix Contact FL SWITCH 2208 PN phoenix_contact:fl_switch_2208_pn (from the name) | from 0.0.0 before 3.53 | CNA record |
Phoenix Contact FL SWITCH 2208C phoenix_contact:fl_switch_2208c (from the name) | from 0.0.0 before 3.53 | CNA record |
Phoenix Contact FL SWITCH 2212-2TC-2SFX phoenix_contact:fl_switch_2212_2tc_2sfx (from the name) | from 0.0.0 before 3.53 | CNA record |
Phoenix Contact FL SWITCH 2214-2FX phoenix_contact:fl_switch_2214_2fx (from the name) | from 0.0.0 before 3.53 | CNA record |
Phoenix Contact FL SWITCH 2214-2FX SM phoenix_contact:fl_switch_2214_2fx_sm (from the name) | from 0.0.0 before 3.53 | CNA record |
Phoenix Contact FL SWITCH 2214-2SFX phoenix_contact:fl_switch_2214_2sfx (from the name) | from 0.0.0 before 3.53 | CNA record |
Phoenix Contact FL SWITCH 2214-2SFX PN phoenix_contact:fl_switch_2214_2sfx_pn (from the name) | from 0.0.0 before 3.53 | CNA record |
Phoenix Contact FL SWITCH 2216 phoenix_contact:fl_switch_2216 (from the name) | from 0.0.0 before 3.53 | CNA record |
Phoenix Contact FL SWITCH 2216 PN phoenix_contact:fl_switch_2216_pn (from the name) | from 0.0.0 before 3.53 | CNA record |
Phoenix Contact FL SWITCH 2304-2GC-2SFP phoenix_contact:fl_switch_2304_2gc_2sfp (from the name) | from 0.0.0 before 3.53 | CNA record |
Phoenix Contact FL SWITCH 2306-2SFP phoenix_contact:fl_switch_2306_2sfp (from the name) | from 0.0.0 before 3.53 | CNA record |
Phoenix Contact FL SWITCH 2306-2SFP PN phoenix_contact:fl_switch_2306_2sfp_pn (from the name) | from 0.0.0 before 3.53 | CNA record |
Phoenix Contact FL SWITCH 2308 phoenix_contact:fl_switch_2308 (from the name) | from 0.0.0 before 3.53 | CNA record |
Phoenix Contact FL SWITCH 2308 PN phoenix_contact:fl_switch_2308_pn (from the name) | from 0.0.0 before 3.53 | CNA record |
Phoenix Contact FL SWITCH 2312-2GC-2SFP phoenix_contact:fl_switch_2312_2gc_2sfp (from the name) | from 0.0.0 before 3.53 | CNA record |
Phoenix Contact FL SWITCH 2314-2SFP phoenix_contact:fl_switch_2314_2sfp (from the name) | from 0.0.0 before 3.53 | CNA record |
Phoenix Contact FL SWITCH 2314-2SFP PN phoenix_contact:fl_switch_2314_2sfp_pn (from the name) | from 0.0.0 before 3.53 | CNA record |
Phoenix Contact FL SWITCH 2316 phoenix_contact:fl_switch_2316 (from the name) | from 0.0.0 before 3.53 | CNA record |
Phoenix Contact FL SWITCH 2316 PN phoenix_contact:fl_switch_2316_pn (from the name) | from 0.0.0 before 3.53 | CNA record |
Phoenix Contact FL SWITCH 2404-2TC-2SFX phoenix_contact:fl_switch_2404_2tc_2sfx (from the name) | from 0.0.0 before 3.53 | CNA record |
Phoenix Contact FL SWITCH 2406-2SFX phoenix_contact:fl_switch_2406_2sfx (from the name) | from 0.0.0 before 3.53 | CNA record |
Phoenix Contact FL SWITCH 2406-2SFX PN phoenix_contact:fl_switch_2406_2sfx_pn (from the name) | from 0.0.0 before 3.53 | CNA record |
Phoenix Contact FL SWITCH 2408 phoenix_contact:fl_switch_2408 (from the name) | from 0.0.0 before 3.53 | CNA record |
Phoenix Contact FL SWITCH 2408 PN phoenix_contact:fl_switch_2408_pn (from the name) | from 0.0.0 before 3.53 | CNA record |
Phoenix Contact FL SWITCH 2412-2TC-2SFX phoenix_contact:fl_switch_2412_2tc_2sfx (from the name) | from 0.0.0 before 3.53 | CNA record |
Phoenix Contact FL SWITCH 2414-2SFX phoenix_contact:fl_switch_2414_2sfx (from the name) | from 0.0.0 before 3.53 | CNA record |
Phoenix Contact FL SWITCH 2414-2SFX PN phoenix_contact:fl_switch_2414_2sfx_pn (from the name) | from 0.0.0 before 3.53 | CNA record |
Phoenix Contact FL SWITCH 2416 phoenix_contact:fl_switch_2416 (from the name) | from 0.0.0 before 3.53 | CNA record |
Phoenix Contact FL SWITCH 2416 PN phoenix_contact:fl_switch_2416_pn (from the name) | from 0.0.0 before 3.53 | CNA record |
Phoenix Contact FL SWITCH 2504-2GC-2SFP phoenix_contact:fl_switch_2504_2gc_2sfp (from the name) | from 0.0.0 before 3.53 | CNA record |
Phoenix Contact FL SWITCH 2506-2SFP phoenix_contact:fl_switch_2506_2sfp (from the name) | from 0.0.0 before 3.53 | CNA record |
Phoenix Contact FL SWITCH 2506-2SFP PN phoenix_contact:fl_switch_2506_2sfp_pn (from the name) | from 0.0.0 before 3.53 | CNA record |
Phoenix Contact FL SWITCH 2508 phoenix_contact:fl_switch_2508 (from the name) | from 0.0.0 before 3.53 | CNA record |
Phoenix Contact FL SWITCH 2508 PN phoenix_contact:fl_switch_2508_pn (from the name) | from 0.0.0 before 3.53 | CNA record |
Phoenix Contact FL SWITCH 2512-2GC-2SFP phoenix_contact:fl_switch_2512_2gc_2sfp (from the name) | from 0.0.0 before 3.53 | CNA record |
Phoenix Contact FL SWITCH 2514-2SFP phoenix_contact:fl_switch_2514_2sfp (from the name) | from 0.0.0 before 3.53 | CNA record |
Phoenix Contact FL SWITCH 2514-2SFP PN phoenix_contact:fl_switch_2514_2sfp_pn (from the name) | from 0.0.0 before 3.53 | CNA record |
Phoenix Contact FL SWITCH 2516 phoenix_contact:fl_switch_2516 (from the name) | from 0.0.0 before 3.53 | CNA record |
Phoenix Contact FL SWITCH 2516 PN phoenix_contact:fl_switch_2516_pn (from the name) | from 0.0.0 before 3.53 | CNA record |
Phoenix Contact FL SWITCH 2608 phoenix_contact:fl_switch_2608 (from the name) | from 0.0.0 before 3.53 | CNA record |
Phoenix Contact FL SWITCH 2608 PN phoenix_contact:fl_switch_2608_pn (from the name) | from 0.0.0 before 3.53 | CNA record |
Phoenix Contact FL SWITCH 2708 phoenix_contact:fl_switch_2708 (from the name) | from 0.0.0 before 3.53 | CNA record |
References
- https://certvde.com/de/advisories/VDE-2025-104
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.