CVE-2026-22319: phoenix contact fl nat 2008 Stack-based Buffer Overflow

Vulnerability summary

CVE-2026-22319 is a medium (CVSS 4.9) Stack-based Buffer Overflow vulnerability in phoenix contact fl nat 2008. EPSS estimates a 0.35% chance of exploitation in the next 30 days, higher than 27.4% of scored vulnerabilities.

Timeline

1. 18-03-2026
   PublishedVulnerability first disclosed.
2. 18-03-2026
   Last modifiedVulnerability information updated.

Description

A stack-based buffer overflow in the device's file installation workflow allows a high-privileged attacker to send oversized POST parameters that overflow a fixed-size stack buffer within an internal process, resulting in a DoS attack.

• CWE-121Stack-based Buffer OverflowA stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).