Is CVE-2017-7928 actively exploited?

No active exploitation of CVE-2017-7928 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2017-7928 be exploited remotely?

Yes. CVE-2017-7928 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2017-7928?

CVE-2017-7928 has a CVSS score of 10.0 (CRITICAL).

HOME VULNERABILITIESCVE-2017-7928

CRITICAL

CVE-2017-7928

CWE-284Published: August 7, 2017· Updated: Jun 17, 2026

10.0

CVSS v3.1

Official Description

An Improper Access Control issue was discovered in Schweitzer Engineering Laboratories (SEL) SEL-3620 and SEL-3622 Security Gateway Versions R202 and, R203, R203-V1, R203-V2 and, R204, R204-V1. The device does not properly enforce access control while configured for NAT port forwarding, which may allow for unauthorized communications to downstream devices.

NVD Source

Technical Analysis

CVE-2017-7928 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

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 10.0.

The vulnerability has a "Changed" scope, meaning successful exploitation can impact components beyond the vulnerable component itself — such as the host operating system or adjacent services.