Buffer overflow in Phoenix Contact Fl Nat 2008
CVE-2026-22318
A stack-based buffer overflow vulnerability in the device's file transfer parameter workflow allows a high-privileged attacker to send oversized POST parameters, causing memory corruption in an internal process, resulting in a DoS attack.
Vulnerability class: Buffer Overflow
EPSS: 0.000 (4.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 4.9 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/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-2026-22318?
- CVE-2026-22318 is a medium-severity vulnerability in Phoenix Contact Fl Nat 2008, classified under Stack-based Buffer Overflow. CVSS score: 4.9/10. Published 2026-03-18.
- How severe is CVE-2026-22318?
- Medium severity. CVSS v3 base score is 4.9 out of 10.