CVE-2017-16731
HIGHDescription
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.
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.
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CVSS v3 Vector
Exploitability
Impact
CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Exploit Intelligence
Moderate risk: more likely to be exploited than 50% of all known CVEs.
References
Related Vulnerabilities
Other CWE-523 vulnerabilities, ordered by exploit likelihood. View all
| CVE | Severity | CVSS | EPSS | Exploited | Fix |
|---|---|---|---|---|---|
| CVE-2023-28708 | Medium | 4.3 | 1.8% | - | Fix |
| CVE-2021-38460 | High | 7.5 | 1.8% | - | - |
| CVE-2020-25175 | Critical | 9.8 | 1.1% | - | - |
| CVE-2022-31805 | High | 7.5 | 1.0% | - | Fix |
| CVE-2024-1102 | Medium | 6.5 | 0.8% | - | Fix |
| CVE-2023-31277 | High | 7.5 | 0.6% | - | - |
Common questions
How do I fix 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.
Is CVE-2017-16731 being actively exploited?
Not that we know of. CVE-2017-16731 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 0.72% is the estimated probability that it will be exploited in the next 30 days. That is higher than 50% of all scored CVEs.
How severe is CVE-2017-16731?
CVE-2017-16731 has a CVSS v3 base score of 8.8, rated high. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.
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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.