Vulnerability · Published Jul 30, 2026 · Assigned by CERTVDE
CVE-2026-44108Firewall bypass during shutdown
Critical 9.8
In plain English
A critical-severity security flaw in CHARX SEC-3000 from Phoenix Contact. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.8% (higher than 58% of all known vulnerabilities).
Severity (CVSS 3.1)9.8Critical
Exploit odds (30 days)0.8%top 42.3% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Due to a flaw in the execution order of scripts during shutdown, the firewall is terminated prematurely during system shutdown. This creates a temporary window in which internal services may become externally accessible, potentially allowing an unauthenticated remote attacker to connect to these services, resulting in full system compromise.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Phoenix Contact | CHARX SEC-3150 | 1.0.0 – before 1.9.1 |
| Phoenix Contact | CHARX SEC-3100 | 1.0.0 – before 1.9.1 |
| Phoenix Contact | CHARX SEC-3050 | 1.0.0 – before 1.9.1 |
| Phoenix Contact | CHARX SEC-3000 | 1.0.0 – before 1.9.1 |
Weakness: CWE-696 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H