{
  "document": {
    "acknowledgments": [
      {
        "organization": "Rockwell Automation",
        "summary": "reported this vulnerability to CISA"
      }
    ],
    "category": "csaf_security_advisory",
    "csaf_version": "2.0",
    "distribution": {
      "text": "Disclosure is not limited",
      "tlp": {
        "label": "WHITE",
        "url": "https://www.cisa.gov/news-events/news/traffic-light-protocol-tlp-definitions-and-usage"
      }
    },
    "lang": "en-US",
    "notes": [
      {
        "category": "other",
        "text": "Worldwide",
        "title": "Countries/areas deployed"
      },
      {
        "category": "other",
        "text": "United States",
        "title": "Company headquarters location"
      },
      {
        "category": "other",
        "text": "Critical Manufacturing",
        "title": "Critical infrastructure sectors"
      },
      {
        "category": "other",
        "text": "Successful exploitation of this vulnerability could result in a major nonrecoverable fault (MNRF), requiring a program download or stage 2 reset to recover.",
        "title": "Advisory Summary"
      },
      {
        "category": "legal_disclaimer",
        "text": "This product is provided subject to this Notification (https://www.cisa.gov/notification) and this Privacy \u0026 Use policy (https://www.cisa.gov/privacy-policy).",
        "title": "Legal Notice and Terms of Use"
      },
      {
        "category": "general",
        "text": "CISA recommends users take defensive measures to minimize the risk of exploitation of these vulnerabilities.",
        "title": "Recommended Practices"
      },
      {
        "category": "general",
        "text": "Minimize network exposure for all control system devices and/or systems, ensuring they are not accessible from the internet.",
        "title": "Recommended Practices"
      },
      {
        "category": "general",
        "text": "Locate control system networks and remote devices behind firewalls and isolating them from business networks.",
        "title": "Recommended Practices"
      },
      {
        "category": "general",
        "text": "When remote access is required, use more secure methods, such as Virtual Private Networks (VPNs), recognizing VPNs may have vulnerabilities and should be updated to the most current version available. Also recognize VPN is only as secure as the connected devices.",
        "title": "Recommended Practices"
      },
      {
        "category": "general",
        "text": "CISA reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures.",
        "title": "Recommended Practices"
      },
      {
        "category": "general",
        "text": "CISA also provides a section for control systems security recommended practices on the ICS webpage on cisa.gov/ics. Several CISA products detailing cyber defense best practices are available for reading and download, including Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies.",
        "title": "Recommended Practices"
      },
      {
        "category": "general",
        "text": "CISA encourages organizations to implement recommended cybersecurity strategies for proactive defense of ICS assets.",
        "title": "Recommended Practices"
      },
      {
        "category": "general",
        "text": "Additional mitigation guidance and recommended practices are publicly available on the ICS webpage at cisa.gov/ics in the technical information paper, ICS-TIP-12-146-01B--Targeted Cyber Intrusion Detection and Mitigation Strategies.",
        "title": "Recommended Practices"
      },
      {
        "category": "general",
        "text": "Organizations observing suspected malicious activity should follow established internal procedures and report findings to CISA for tracking and correlation against other incidents.",
        "title": "Recommended Practices"
      },
      {
        "category": "general",
        "text": "CISA also recommends users take the following measures to protect themselves from social engineering attacks:",
        "title": "Recommended Practices"
      },
      {
        "category": "general",
        "text": "Do not click web links or open attachments in unsolicited email messages.",
        "title": "Recommended Practices"
      },
      {
        "category": "general",
        "text": "Refer to Recognizing and Avoiding Email Scams for more information on avoiding email scams.",
        "title": "Recommended Practices"
      },
      {
        "category": "general",
        "text": "Refer to Avoiding Social Engineering and Phishing Attacks for more information on social engineering attacks.",
        "title": "Recommended Practices"
      },
      {
        "category": "general",
        "text": "No known public exploitation specifically targeting these vulnerabilities has been reported to CISA at this time.",
        "title": "Recommended Practices"
      }
    ],
    "publisher": {
      "category": "coordinator",
      "contact_details": "central@cisa.dhs.gov",
      "name": "CISA",
      "namespace": "https://www.cisa.gov/"
    },
    "references": [
      {
        "category": "self",
        "summary": "ICSA Advisory ICSA-26-244-05 JSON",
        "url": "https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/OT/white/2026/icsa-26-244-05.json"
      },
      {
        "category": "self",
        "summary": "ICSA Advisory ICSA-26-244-05 - Web Version",
        "url": "https://www.cisa.gov/news-events/ics-advisories/icsa-26-244-05"
      },
      {
        "category": "external",
        "summary": "Recommended Practices",
        "url": "https://www.cisa.gov/news-events/ics-alerts/ics-alert-10-301-01"
      },
      {
        "category": "external",
        "summary": "Recommended Practices",
        "url": "https://www.cisa.gov/resources-tools/resources/ics-recommended-practices"
      },
      {
        "category": "external",
        "summary": "Recommended Practices",
        "url": "https://www.cisa.gov/topics/industrial-control-systems"
      },
      {
        "category": "external",
        "summary": "Recommended Practices",
        "url": "https://www.cisa.gov/sites/default/files/recommended_practices/NCCIC_ICS-CERT_Defense_in_Depth_2016_S508C.pdf"
      },
      {
        "category": "external",
        "summary": "Recommended Practices",
        "url": "https://www.cisa.gov/sites/default/files/publications/Cybersecurity_Best_Practices_for_Industrial_Control_Systems.pdf"
      },
      {
        "category": "external",
        "summary": "Recommended Practices",
        "url": "https://www.cisa.gov/news-events/news/targeted-cyber-intrusion-detection-and-mitigation-strategies-update-b"
      }
    ],
    "title": "Rockwell Automation ControlLogix, CompactLogix, CompactLogix 5480, GuardLogix, Compact GuardLogix",
    "tracking": {
      "current_release_date": "2026-09-01T06:00:00.000000Z",
      "generator": {
        "date": "2026-08-26T22:14:55.660088Z",
        "engine": {
          "name": "CISA CSAF Generator",
          "version": "2.0.0"
        }
      },
      "id": "ICSA-26-244-05",
      "initial_release_date": "2026-09-01T06:00:00.000000Z",
      "revision_history": [
        {
          "date": "2026-09-01T06:00:00.000000Z",
          "number": "1",
          "summary": "Initial republication of Rockwell Automation advisory"
        }
      ],
      "status": "final",
      "version": "1"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c34.015",
                "product": {
                  "name": "Rockwell Automation ControlLogix 5580 \u003c34.015",
                  "product_id": "CSAFPID-0001"
                }
              },
              {
                "category": "product_version_range",
                "name": "\u003c35.014",
                "product": {
                  "name": "Rockwell Automation ControlLogix 5580 \u003c35.014",
                  "product_id": "CSAFPID-0002"
                }
              },
              {
                "category": "product_version_range",
                "name": "\u003c36.013",
                "product": {
                  "name": "Rockwell Automation ControlLogix 5580 \u003c36.013",
                  "product_id": "CSAFPID-0003"
                }
              },
              {
                "category": "product_version_range",
                "name": "\u003c37.011",
                "product": {
                  "name": "Rockwell Automation ControlLogix 5580 \u003c37.011",
                  "product_id": "CSAFPID-0004"
                }
              }
            ],
            "category": "product_name",
            "name": "ControlLogix 5580"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c34.015",
                "product": {
                  "name": "Rockwell Automation GuardLogix 5580 \u003c34.015",
                  "product_id": "CSAFPID-0005"
                }
              },
              {
                "category": "product_version_range",
                "name": "\u003c35.014",
                "product": {
                  "name": "Rockwell Automation GuardLogix 5580 \u003c35.014",
                  "product_id": "CSAFPID-0006"
                }
              },
              {
                "category": "product_version_range",
                "name": "\u003c36.013",
                "product": {
                  "name": "Rockwell Automation GuardLogix 5580 \u003c36.013",
                  "product_id": "CSAFPID-0007"
                }
              },
              {
                "category": "product_version_range",
                "name": "\u003c37.011",
                "product": {
                  "name": "Rockwell Automation GuardLogix 5580 \u003c37.011",
                  "product_id": "CSAFPID-0008"
                }
              }
            ],
            "category": "product_name",
            "name": "GuardLogix 5580"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c34.015",
                "product": {
                  "name": "Rockwell Automation CompactLogix 5380 \u003c34.015",
                  "product_id": "CSAFPID-0009"
                }
              },
              {
                "category": "product_version_range",
                "name": "\u003c35.014",
                "product": {
                  "name": "Rockwell Automation CompactLogix 5380 \u003c35.014",
                  "product_id": "CSAFPID-0010"
                }
              },
              {
                "category": "product_version_range",
                "name": "\u003c36.013",
                "product": {
                  "name": "Rockwell Automation CompactLogix 5380 \u003c36.013",
                  "product_id": "CSAFPID-0011"
                }
              },
              {
                "category": "product_version_range",
                "name": "\u003c37.011",
                "product": {
                  "name": "Rockwell Automation CompactLogix 5380 \u003c37.011",
                  "product_id": "CSAFPID-0012"
                }
              }
            ],
            "category": "product_name",
            "name": "CompactLogix 5380"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c34.015",
                "product": {
                  "name": "Rockwell Automation Compact GuardLogix 5380 \u003c34.015",
                  "product_id": "CSAFPID-0013"
                }
              },
              {
                "category": "product_version_range",
                "name": "\u003c35.014",
                "product": {
                  "name": "Rockwell Automation Compact GuardLogix 5380 \u003c35.014",
                  "product_id": "CSAFPID-0014"
                }
              },
              {
                "category": "product_version_range",
                "name": "\u003c36.013",
                "product": {
                  "name": "Rockwell Automation Compact GuardLogix 5380 \u003c36.013",
                  "product_id": "CSAFPID-0015"
                }
              },
              {
                "category": "product_version_range",
                "name": "\u003c37.011",
                "product": {
                  "name": "Rockwell Automation Compact GuardLogix 5380 \u003c37.011",
                  "product_id": "CSAFPID-0016"
                }
              }
            ],
            "category": "product_name",
            "name": "Compact GuardLogix 5380"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c34.015",
                "product": {
                  "name": "Rockwell Automation CompactLogix 5480 \u003c34.015",
                  "product_id": "CSAFPID-0017"
                }
              },
              {
                "category": "product_version_range",
                "name": "\u003c35.014",
                "product": {
                  "name": "Rockwell Automation CompactLogix 5480 \u003c35.014",
                  "product_id": "CSAFPID-0018"
                }
              },
              {
                "category": "product_version_range",
                "name": "\u003c36.013",
                "product": {
                  "name": "Rockwell Automation CompactLogix 5480 \u003c36.013",
                  "product_id": "CSAFPID-0019"
                }
              },
              {
                "category": "product_version_range",
                "name": "\u003c37.011",
                "product": {
                  "name": "Rockwell Automation CompactLogix 5480 \u003c37.011",
                  "product_id": "CSAFPID-0020"
                }
              }
            ],
            "category": "product_name",
            "name": "CompactLogix 5480"
          }
        ],
        "category": "vendor",
        "name": "Rockwell Automation"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2021-42260",
      "cwe": {
        "id": "CWE-835",
        "name": "Loop with Unreachable Exit Condition (\u0027Infinite Loop\u0027)"
      },
      "notes": [
        {
          "category": "summary",
          "text": "A potential denial of service vulnerability exists in the affected products and can be triggered via corrupt crafted data. This could result in a major nonrecoverable fault (MNRF). A program download is required to recover safety controllers. For non-safety controllers, a stage 2 reset is required to recover.",
          "title": "Vulnerability Summary"
        },
        {
          "category": "details",
          "text": "SSVCv2/E:N/A:Y/2026-08-26T22:14:55.661576Z",
          "title": "SSVC"
        }
      ],
      "product_status": {
        "known_affected": [
          "CSAFPID-0001",
          "CSAFPID-0002",
          "CSAFPID-0003",
          "CSAFPID-0004",
          "CSAFPID-0005",
          "CSAFPID-0006",
          "CSAFPID-0007",
          "CSAFPID-0008",
          "CSAFPID-0009",
          "CSAFPID-0010",
          "CSAFPID-0011",
          "CSAFPID-0012",
          "CSAFPID-0013",
          "CSAFPID-0014",
          "CSAFPID-0015",
          "CSAFPID-0016",
          "CSAFPID-0017",
          "CSAFPID-0018",
          "CSAFPID-0019",
          "CSAFPID-0020"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "www.cve.org",
          "url": "https://www.cve.org/CVERecord?id=CVE-2021-42260"
        },
        {
          "category": "external",
          "summary": "cwe.mitre.org",
          "url": "https://cwe.mitre.org/data/definitions/835.html"
        },
        {
          "category": "external",
          "summary": "www.first.org",
          "url": "https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
        },
        {
          "category": "external",
          "summary": "www.first.org",
          "url": "https://www.first.org/cvss/calculator/4.0#CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "Rockwell Automation recommends users update to firmware version 34.015 and later.",
          "product_ids": [
            "CSAFPID-0001",
            "CSAFPID-0005",
            "CSAFPID-0009",
            "CSAFPID-0013",
            "CSAFPID-0017"
          ]
        },
        {
          "category": "vendor_fix",
          "details": "Rockwell Automation recommends users update to firmware version 35.014 and later.",
          "product_ids": [
            "CSAFPID-0002",
            "CSAFPID-0006",
            "CSAFPID-0010",
            "CSAFPID-0014",
            "CSAFPID-0018"
          ]
        },
        {
          "category": "vendor_fix",
          "details": "Rockwell Automation recommends users update to firmware version 36.013 and later.",
          "product_ids": [
            "CSAFPID-0003",
            "CSAFPID-0007",
            "CSAFPID-0011",
            "CSAFPID-0015",
            "CSAFPID-0019"
          ]
        },
        {
          "category": "vendor_fix",
          "details": "Rockwell Automation recommends users update to firmware version 37.011 and later.",
          "product_ids": [
            "CSAFPID-0004",
            "CSAFPID-0008",
            "CSAFPID-0012",
            "CSAFPID-0016",
            "CSAFPID-0020"
          ]
        },
        {
          "category": "mitigation",
          "details": "Customers using the affected software who are not able to upgrade to one of the corrected versions should use Rockwell Automation\u0027s security best practices.",
          "product_ids": [
            "CSAFPID-0001",
            "CSAFPID-0002",
            "CSAFPID-0003",
            "CSAFPID-0004",
            "CSAFPID-0005",
            "CSAFPID-0006",
            "CSAFPID-0007",
            "CSAFPID-0008",
            "CSAFPID-0009",
            "CSAFPID-0010",
            "CSAFPID-0011",
            "CSAFPID-0012",
            "CSAFPID-0013",
            "CSAFPID-0014",
            "CSAFPID-0015",
            "CSAFPID-0016",
            "CSAFPID-0017",
            "CSAFPID-0018",
            "CSAFPID-0019",
            "CSAFPID-0020"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "products": [
            "CSAFPID-0001",
            "CSAFPID-0002",
            "CSAFPID-0003",
            "CSAFPID-0004",
            "CSAFPID-0005",
            "CSAFPID-0006",
            "CSAFPID-0007",
            "CSAFPID-0008",
            "CSAFPID-0009",
            "CSAFPID-0010",
            "CSAFPID-0011",
            "CSAFPID-0012",
            "CSAFPID-0013",
            "CSAFPID-0014",
            "CSAFPID-0015",
            "CSAFPID-0016",
            "CSAFPID-0017",
            "CSAFPID-0018",
            "CSAFPID-0019",
            "CSAFPID-0020"
          ]
        }
      ]
    }
  ]
}