CVE-2026-44104 ControllerAgent does not perform validation of firmware
An unauthenticated remote attacker can install modified firmware on Phoenix Contact charging controllers due to missing cryptographic signature verification, leading to full system compromise.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-44104?
CVE-2026-44104 is a critical vulnerability in Phoenix Contact CHARX SEC-3000, published on 30 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
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.
Weakness: CWE-347
Which versions are affected by CVE-2026-44104?
How do I fix CVE-2026-44104?
No fix has been published for CVE-2026-44104 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-44104 being exploited?
There is no known exploitation of CVE-2026-44104 in the wild and no public exploit code.
Sources
Also known as GHSA-fvfc-m52v-j2p2.