Buffer overflow in Phoenix Contact Fl Nat 2008
CVE-2026-22320
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 i…
Vulnerability class: Buffer Overflow
EPSS: 0.000 (5.6th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Phoenix Contact Fl Nat 2008 — versions 0.0.0
- Phoenix Contact Fl Nat 2208 — versions 0.0.0
- Phoenix Contact Fl Nat 2304-2gc-2sfp — versions 0.0.0
- Phoenix Contact Fl Switch 2005 — versions 0.0.0
- Phoenix Contact Fl Switch 2008 — versions 0.0.0
- Phoenix Contact Fl Switch 2008f — versions 0.0.0
- Phoenix Contact Fl Switch 2016 — versions 0.0.0
- Phoenix Contact Fl Switch 2105 — versions 0.0.0
- Phoenix Contact Fl Switch 2108 — versions 0.0.0
- Phoenix Contact Fl Switch 2116 — versions 0.0.0
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2026-22320?
- CVE-2026-22320 is a medium-severity vulnerability in Phoenix Contact Fl Nat 2008, classified under Stack-based Buffer Overflow. CVSS score: 6.5/10. Published 2026-03-18.
- How severe is CVE-2026-22320?
- Medium severity. CVSS v3 base score is 6.5 out of 10.