CVE-2026-6284
CRITICALDescription
An attacker with network access to the PLC is able to brute force discover passwords to gain unauthorized access to systems and services. The limited password complexity and no password input limiters makes brute force password enumeration possible.
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:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Exploit Intelligence
Low risk: more likely to be exploited than 37% of all known CVEs.
References
Related Vulnerabilities
Other CWE-521 vulnerabilities, ordered by exploit likelihood. View all
| CVE | Severity | CVSS | EPSS | Exploited | Fix |
|---|---|---|---|---|---|
| CVE-2019-17444 | Critical | 9.8 | 69% | - | Fix |
| CVE-2012-2441 | High | 8.5 | 8.6% | - | Fix |
| CVE-2017-3186 | Critical | 9.8 | 6.1% | - | - |
| CVE-2019-18988 | High | 7.0 | 4.7% | KEV | - |
| CVE-2018-1000134 | Critical | 9.8 | 4.7% | - | - |
| CVE-2017-6339 | Medium | 6.5 | 4.1% | - | - |
Common questions
How do I fix CVE-2026-6284?
No published fix for CVE-2026-6284 has been found yet. Check the linked vendor advisories for guidance as it becomes available.
Is CVE-2026-6284 being actively exploited?
Not that we know of. CVE-2026-6284 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 0.45% is the estimated probability that it will be exploited in the next 30 days. That is higher than 37% of all scored CVEs.
How severe is CVE-2026-6284?
CVE-2026-6284 has a CVSS v3 base score of 9.1, rated critical. 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 2026-04-20.