An Improper Access Control issue was discovered in Schweitzer Engineering Laboratories (SEL) SEL-3620 and SEL-3622 Security Gateway Version…

published 2017-08-07 9 y ago modified 2026-06-17 4 mo ago also EUVD-2017-16899

cvss: 10.0; version 3.0, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 2.3%; EPSS 2.3% chance of exploitation in 30 days, percentile 83%
public exploits: 0; none known

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.

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

cisa ICSA-17-192-06 updated 2017-07-11 cvss 7.2

Schweitzer Engineering Laboratories, Inc. SEL-3620 and SEL-3622

Schweitzer Engineering Laboratories, Inc. (SEL) Security Gateway R204, R204-V1, R202, R203, R203-V1, R203-V2
affected: mitigation “Contact can be made at the following location:” selinc.com

From CISA ICS and IT advisories (CSAF, https://github.com/cisagov/CSAF), a U.S. Government work; changed: reduced to products, statuses and remediations. CISA notification · csaf

Exploit prediction

2.27% chance of exploitation in the next 30 days, higher than 83% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
NVD	3.0	10.0	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
NVD	2.0	7.5	AV:N/AC:L/Au:N/C:P/I:P/A:P

Affected products

n/a Schweitzer Engineering Laboratories, Inc. SEL-3620 and SEL-3622

Classification

Weakness

CWE-284 Improper Access Control

References

ics-cert.us-cert.gov /advisories/ICSA-17-192-06
mitigation, third-party-advisory, us-government-resource
securityfocus.com /bid/99536
vdb-entry, third-party-advisory

Sources

CVE List CVE-2017-7928
NVD CVE-2017-7928

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary