CVE-2025-27458: High severity Endress Meac300-fnade4 Firmware vulnerability
The VNC authentication mechanism bases on a challenge-response system where both server and client use the same password for encryption. The challenge is sent from the server to the client, is encrypted by the client and sent back. The server does the same encryption locally and if the responses match it is prooven that the client knows the correct password. Since all VNC communication is unencrypted, an attacker can obtain the challenge and response and try to derive the password from this information.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2025-27458?
CVE-2025-27458 is considered a medium severity vulnerability due to its impact on the VNC authentication mechanism.
How do I fix CVE-2025-27458?
To fix CVE-2025-27458, update the VNC authentication mechanism to utilize stronger cryptographic methods.
What systems are affected by CVE-2025-27458?
CVE-2025-27458 affects the Endress Meac300-fnade4 firmware and associated hardware.
What is the exploitability of CVE-2025-27458?
CVE-2025-27458 can be exploited remotely, allowing attackers to compromise the VNC authentication process.
What can happen if CVE-2025-27458 is exploited?
Exploitation of CVE-2025-27458 may lead to unauthorized access to sensitive information and system control.