Vulnerability · Published Jul 30, 2026 · Assigned by CERTVDE
CVE-2026-44104ControllerAgent does not perform validation of firmware
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 0.4% (higher than 36% of all known vulnerabilities).
Severity (CVSS 3.1)9.8Critical
Exploit odds (30 days)0.4%top 64.4% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
The firmware update process for the basemodule of the charging controller only validates the CRC32 checksum without cryptographic signature verification. This allows an unauthenticated remote attacker to install a modified firmware, 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-347 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H