CVE-2020-12523
MEDIUMDescription
On Phoenix Contact mGuard Devices versions before 8.8.3 LAN ports get functional after reboot even if they are disabled in the device configuration. For mGuard devices with integrated switch on the LAN side, single switch ports can be disabled by device configuration. After a reboot these ports get functional independent from their configuration setting: Missing Initialization of Resource
How to fix
TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works
Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.
CVSS v3 Vector
Exploitability
Impact
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L
Exploit Intelligence
Moderate risk: more likely to be exploited than 56% of all known CVEs.
References
Related Vulnerabilities
Other CWE-909 vulnerabilities, ordered by exploit likelihood. View all
| CVE | Severity | CVSS | EPSS | Exploited | Fix |
|---|---|---|---|---|---|
| CVE-2018-14647 | High | 7.5 | 11% | - | Fix |
| CVE-2019-9639 | High | 7.5 | 8.2% | - | Fix |
| CVE-2018-10811 | High | 7.5 | 6.2% | - | Fix |
| CVE-2020-12352 | Medium | 6.5 | 5.7% | - | Fix |
| CVE-2019-3804 | High | 7.5 | 4.9% | - | Fix |
| CVE-2020-16932 | High | 7.8 | 4.8% | - | - |
Common questions
How do I fix CVE-2020-12523?
Published advisories record a fix for 8 affected products. The "How to fix" section on this page lists the fixed version and source advisory for each one, so apply the entry matching what you actually run.
Is CVE-2020-12523 being actively exploited?
Not that we know of. CVE-2020-12523 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 0.89% is the estimated probability that it will be exploited in the next 30 days. That is higher than 56% of all scored CVEs.
How severe is CVE-2020-12523?
CVE-2020-12523 has a CVSS v3 base score of 5.4, rated medium. 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.
What does CVE-2020-12523 affect?
Published advisories record a fix for fl mguard rs4004 tx\/dtx firmware (NVD), fl mguard rs4004 tx\/dtx vpn firmware (NVD), innominate mguard rs4000 4tx\/3g\/tx vpn firmware (NVD), innominate mguard rs4000 4tx\/tx firmware (NVD), and 4 more. Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.
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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.