Is CVE-2024-39345 actively exploited?

No active exploitation of CVE-2024-39345 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2024-39345 be exploited remotely?

Yes. CVE-2024-39345 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2024-39345?

CVE-2024-39345 has a CVSS score of 7.2 (HIGH).

HOME VULNERABILITIESCVE-2024-39345

HIGH

CVE-2024-39345

CWE-78Published: July 24, 2024· Updated: Jun 17, 2026

7.2

CVSS v3.1

Official Description

AdTran 834-5 HDC17600021F1 (SmartOS 11.1.1.1) devices enable the SSH service by default and have a hidden, undocumented, hard-coded support account whose password is based on the devices MAC address. All of the devices internet interfaces share a similar MAC address that only varies in their final octet. This allows network-adjacent attackers to derive the support user's SSH password by decrementing the final octet of the connected gateway address or via the BSSID. An attacker can then execute arbitrary OS commands with root-level privileges. NOTE: The vendor states that there is no intended functionality allowing an attacker to execute arbitrary OS Commands with root-level privileges. The vendor also states that this issue was fixed in SmartOS 12.5.5.1.

NVD Source

Technical Analysis

CVE-2024-39345 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires high privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 7.2.