Vulnerability Monitor

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CVE-2020-12514


Pepperl+Fuchs Comtrol IO-Link Master in Version 1.5.48 and below is prone to a NULL Pointer Dereference that leads to a DoS in discoveryd


Security Impact Summary

This vulnerability carries a MEDIUM severity rating with a CVSS v3.1 score of 6.6, indicating it can be exploited remotely over the network but requires specific conditions to be met without requiring user interaction . The vulnerability impacts confidentiality (data exposure), integrity (unauthorized modifications), and availability (service disruption) for affected systems. Impacting 24 products from pepperl-fuchs, from pepperl-fuchs, from pepperl-fuchs and 21 others, organizations running these solutions should prioritize assessment and patching.

Historical Context

Reported in 2021, this vulnerability emerged during an era marked by increased sophistication in supply chain attacks, cloud infrastructure vulnerabilities, and software-as-a-service (SaaS) security challenges. Security practices during this period emphasized zero-trust architectures, container security, and API protection.


Published

2021-01-22T19:15:12.300

Last Modified

2024-11-21T04:59:50.700

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 6.6 (MEDIUM)

CVSSv2 Vector

AV:N/AC:L/Au:S/C:N/I:N/A:P

  • Access Vector: NETWORK
  • Access Complexity: LOW
  • Authentication: SINGLE
  • Confidentiality Impact: NONE
  • Integrity Impact: NONE
  • Availability Impact: PARTIAL
Exploitability Score

8.0

Impact Score

2.9

Weaknesses
  • Type: Secondary
    CWE-476
  • Type: Primary
    CWE-476

Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Operating System pepperl-fuchs io-link_master_4-eip_firmware ≤ 1.5.48 Yes
Hardware pepperl-fuchs io-link_master_4-eip - No
Operating System pepperl-fuchs io-link_master_8-eip_firmware ≤ 1.5.48 Yes
Hardware pepperl-fuchs io-link_master_8-eip - No
Operating System pepperl-fuchs io-link_master_8-eip-l_firmware ≤ 1.5.48 Yes
Hardware pepperl-fuchs io-link_master_8-eip-l - No
Operating System pepperl-fuchs io-link_master_dr-8-eip_firmware ≤ 1.5.48 Yes
Hardware pepperl-fuchs io-link_master_dr-8-eip - No
Operating System pepperl-fuchs io-link_master_dr-8-eip-p_firmware ≤ 1.5.48 Yes
Hardware pepperl-fuchs io-link_master_dr-8-eip-p - No
Operating System pepperl-fuchs io-link_master_dr-8-eip-t_firmware ≤ 1.5.48 Yes
Hardware pepperl-fuchs io-link_master_dr-8-eip-t - No
Operating System pepperl-fuchs io-link_master_4-pnio_firmware ≤ 1.5.48 Yes
Hardware pepperl-fuchs io-link_master_4-pnio - No
Operating System pepperl-fuchs io-link_master_8-pnio_firmware ≤ 1.5.48 Yes
Hardware pepperl-fuchs io-link_master_8-pnio - No
Operating System pepperl-fuchs io-link_master_8-pnio-l_firmware ≤ 1.5.48 Yes
Hardware pepperl-fuchs io-link_master_8-pnio-l - No
Operating System pepperl-fuchs io-link_master_dr-8-pnio_firmware ≤ 1.5.48 Yes
Hardware pepperl-fuchs io-link_master_dr-8-pnio - No
Operating System pepperl-fuchs io-link_master_dr-8-pnio-p_firmware ≤ 1.5.48 Yes
Hardware pepperl-fuchs io-link_master_dr-8-pnio-p - No
Operating System pepperl-fuchs io-link_master_dr-8-pnio-t_firmware ≤ 1.5.48 Yes
Hardware pepperl-fuchs io-link_master_dr-8-pnio-t - No

References

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For pepperl-fuchs's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.