CVE-2020-6111
HIGHEPSS 91th pctlDescription
An exploitable denial-of-service vulnerability exists in the IPv4 functionality of Allen-Bradley MicroLogix 1100 Programmable Logic Controller Systems Series B FRN 16.000, Series B FRN 15.002, Series B FRN 15.000, Series B FRN 14.000, Series B FRN 13.000, Series B FRN 12.000, Series B FRN 11.000 and Series B FRN 10.000. A specially crafted packet can cause a major error, resulting in a denial of service. An attacker can send a malicious packet to trigger this vulnerability.
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:N/I:N/A:H
Exploit Intelligence
High risk: more likely to be exploited than 91% of all known CVEs.
References
Related Vulnerabilities
Other CWE-189 vulnerabilities, ordered by exploit likelihood. View all
| CVE | Severity | CVSS | EPSS | Exploited | Fix |
|---|---|---|---|---|---|
| CVE-2015-1538 | High | 10.0 | 99% | - | - |
| CVE-2006-3747 | High | 7.6 | 97% | - | Fix |
| CVE-2007-0071 | High | 9.3 | 93% | - | - |
| CVE-2015-3829 | High | 10.0 | 90% | - | - |
| CVE-2015-3864 | High | 10.0 | 87% | - | - |
| CVE-2015-1539 | High | 10.0 | 86% | - | - |
Common questions
How do I fix CVE-2020-6111?
No published fix for CVE-2020-6111 has been found yet. Check the linked vendor advisories for guidance as it becomes available.
Is CVE-2020-6111 being actively exploited?
Not that we know of. CVE-2020-6111 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 4.6% is the estimated probability that it will be exploited in the next 30 days. That is higher than 91% of all scored CVEs.
How severe is CVE-2020-6111?
CVE-2020-6111 has a CVSS v3 base score of 7.5, 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 2024-11-21.