CVE-2026-22320 describes a stack-based buffer overflow in the CLI's TFTP file-transfer command handling, triggered by unexpected or oversized filename input. A low-privileged attacker with Telnet/SSH access can exploit this vulnerability over the network, causing memory corruption and a denial of service by rendering the CLI and web dashboard unavailable. Rated Medium with a CVSS score of 6.5, the primary impact is system unavailability. There is currently no known active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
| Phoenix Contact | FL NAT 2008 | >= 0.0.0, < 3.53CNA affecteddefault unaffected | |
| Phoenix Contact | FL NAT 2208 | >= 0.0.0, < 3.53CNA affecteddefault unaffected | |
| Phoenix Contact | FL NAT 2304-2GC-2SFP | >= 0.0.0, < 3.53CNA affecteddefault unaffected | |
| Phoenix Contact | FL SWITCH 2005 | >= 0.0.0, < 3.53CNA affecteddefault unaffected | |
| Phoenix Contact | FL SWITCH 2008 | >= 0.0.0, < 3.53CNA affecteddefault unaffected |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.