CVE-2020-12519
CVE-2020-12519 is a high-severity vulnerability in Phoenixcontact Plcnext Firmware with a CVSS 3.x base score of 8.8. 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-269.
Key facts
- Severity: High (CVSS 3.x base score 8.8)
- CVSS v2: 10.0
- EPSS exploit prediction: 1% (54th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-269
- Affected product: Phoenixcontact Plcnext Firmware
- Published:
- Last modified:
Description
On Phoenix Contact PLCnext Control Devices versions before 2021.0 LTS an attacker can use this vulnerability i.e. to open a reverse shell with root privileges.
Frequently asked questions
- What is CVE-2020-12519?
- On Phoenix Contact PLCnext Control Devices versions before 2021.0 LTS an attacker can use this vulnerability i.e. to open a reverse shell with root privileges.
- How severe is CVE-2020-12519?
- CVE-2020-12519 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2020-12519 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (54th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2020-12519?
- CVE-2020-12519 affects Phoenixcontact Plcnext Firmware. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2020-12519?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- When was CVE-2020-12519 published?
- CVE-2020-12519 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-2020-12517 — 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…
- CVE-2020-12518 — Medium (CVSS 5.5): On Phoenix Contact PLCnext Control Devices versions before 2021.0 LTS an attacker can use the knowledge gained by…
All CVEs affecting Phoenixcontact Plcnext Firmware →
Other CWE-269 (Improper Privilege Management) vulnerabilities
- CVE-2026-31852 — Critical (CVSS 10.0): Jellyfin is an open-source media system. The code-quality.yml GitHub Actions workflow in jellyfin/jellyfin-ios is…
- CVE-2025-20282 — Critical (CVSS 10.0): A vulnerability in an internal API of Cisco ISE and Cisco ISE-PIC could allow an unauthenticated, remote attacker to…
- CVE-2025-0505 — Critical (CVSS 10.0): On Arista CloudVision systems (virtual or physical on-premise deployments), Zero Touch Provisioning can be used to gain…
- CVE-2023-48418 — Critical (CVSS 10.0): In checkDebuggingDisallowed of DeviceVersionFragment.java, there is a possible way to access adb before SUW…
- CVE-2023-48419 — Critical (CVSS 10.0): An attacker in the wifi vicinity of a target Google Home can spy on the victim, resulting in Elevation of Privilege
- CVE-2023-31273 — Critical (CVSS 10.0): Protection mechanism failure in some Intel DCM software before version 5.2 may allow an unauthenticated user to…
Browse all CWE-269 (Improper Privilege Management) vulnerabilities →