CVE-2020-12518
CVE-2020-12518 is a medium-severity vulnerability in Phoenixcontact Plcnext Firmware with a CVSS 3.x base score of 5.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-200.
Key facts
- Severity: Medium (CVSS 3.x base score 5.5)
- CVSS v2: 5.0
- EPSS exploit prediction: 1% (50th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-200
- Affected product: Phoenixcontact Plcnext Firmware
- Published:
- Last modified:
Description
On Phoenix Contact PLCnext Control Devices versions before 2021.0 LTS an attacker can use the knowledge gained by reading the insufficiently protected sensitive information to plan further attacks.
Frequently asked questions
- What is CVE-2020-12518?
- On Phoenix Contact PLCnext Control Devices versions before 2021.0 LTS an attacker can use the knowledge gained by reading the insufficiently protected sensitive information to plan further attacks.
- How severe is CVE-2020-12518?
- CVE-2020-12518 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
- Is CVE-2020-12518 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (50th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2020-12518?
- CVE-2020-12518 affects Phoenixcontact Plcnext Firmware. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2020-12518?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2020-12518 published?
- CVE-2020-12518 was published on 2020-12-17 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:o:phoenixcontact:plcnext_firmware:*:*:*:*:long_term_support:*:*:*
More vulnerabilities in Phoenixcontact Plcnext Firmware
- CVE-2020-12519 — High (CVSS 8.8): On Phoenix Contact PLCnext Control Devices versions before 2021.0 LTS an attacker can use this vulnerability i.e. to…
- CVE-2020-12517 — High (CVSS 8.8): On Phoenix Contact PLCnext Control Devices versions before 2021.0 LTS an authenticated low privileged user could embed…
- CVE-2020-12521 — Medium (CVSS 6.5): On Phoenix Contact PLCnext Control Devices versions before 2021.0 LTS a specially crafted LLDP packet may lead to a…
All CVEs affecting Phoenixcontact Plcnext Firmware →
Other CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor) vulnerabilities
- CVE-2026-27604 — Critical (CVSS 10.0): FOSSBilling is a free, open-source billing and client management system. Starting in version 0.5.4 and prior to version…
- CVE-2026-40965 — Critical (CVSS 10.0): Cloud Foundry UAA versions v76.12.0 through v78.12.0 are vulnerable to a private key exposure. The server contains a…
- CVE-2026-42826 — Critical (CVSS 10.0): Exposure of sensitive information to an unauthorized actor in Azure DevOps allows an unauthorized attacker to disclose…
- CVE-2025-29270 — Critical (CVSS 10.0): Incorrect access control in the realtime.cgi endpoint of Deep Sea Electronics devices DSE855 v1.1.0 to v1.1.26 allows…
- CVE-2025-61481 — Critical (CVSS 10.0): An issue in MikroTik RouterOS v.7.14.2 and SwOS v.2.18 exposes the WebFig management interface over cleartext HTTP by…
- CVE-2025-53624 — Critical (CVSS 10.0): The Docusaurus gists plugin adds a page to your Docusaurus instance, displaying all public gists of a GitHub user.…
Browse all CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor) vulnerabilities →