Is CVE-2017-16731 in the CISA KEV catalog?

No. CVE-2017-16731 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2017-16731?

CVE-2017-16731 has a CVSS v3 base score of 8.8 (HIGH).

What is the EPSS score for CVE-2017-16731?

CVE-2017-16731 has an EPSS score of 0.72% (49th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix or mitigate CVE-2017-16731?

No published fix for CVE-2017-16731 has been found yet. Check the linked vendor advisories for guidance as it becomes available.

CVE & CISA-KEV Catalog

CVE-2017-16731

HIGH

8.8

CVSS v3

NVD

Description

An Unprotected Transport of Credentials issue was discovered in ABB Ellipse 8.3 through Ellipse 8.9 released prior to December 2017 (including Ellipse Select). A vulnerability exists in the authentication of Ellipse to LDAP/AD using the LDAP protocol. An attacker could exploit the vulnerability by sniffing local network traffic, allowing the discovery of authentication credentials.

CWE-523 CWE-522

How to fix

No published remediation has been found for this vulnerability's affected products yet.

Mitigation guidance may be in the linked vendor advisories in the References section below.

CVSS v3 Vector

Exploitability

Attack VectorAdjacent

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploit Intelligence

0.72%probability of exploitation in 30 days

49thpercentile

Moderate risk: more likely to be exploited than 49% of all known CVEs.

References

Third-Party Advisory1

ics-cert.us-cert.gov

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-05-13.