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7PAA024620

Vulnerability from csaf_abb - Published: 2026-06-25 00:30 - Updated: 2026-06-25 00:30
Summary
ABB Ability Edgenius: Copy Fail
Notes
Summary: ABB is aware of public reports of a vulnerability CVE‑2026‑31431 (Copy Fail) in the product versions listed as affected in the advisory. An update is available that resolves a publicly reported vulnerability. CVE‑2026‑31431 (Copy Fail) is a Linux kernel vulnerability that may allow a locally authenticated user or compromised container workload to gain elevated (root) privileges on affected systems. Once root access is obtained, the attacker can effectively gain complete control of the system
Support: For additional instructions and support please contact your local ABB service organization. For contact information, see www.abb.com/contactcenters. Information about ABB’s cyber security program and capabilities can be found at www.abb.com/cybersecurity.
Notice: The information in this document is subject to change without notice, and should not be construed as a commitment by ABB. ABB provides no warranty, express or implied, including warranties of merchantability and fitness for a particular purpose, for the information contained in this document, and assumes no responsibility for any errors that may appear in this document. In no event shall ABB or any of its suppliers be liable for direct, indirect, special, incidental or consequential damages of any nature or kind arising from the use of this document, or from the use of any hardware or software described in this document, even if ABB or its suppliers have been advised of the possibility of such damages. This document and parts hereof must not be reproduced or copied without written permission from ABB, and the contents hereof must not be imparted to a third party nor used for any unauthorized purpose. All rights to registrations and trademarks reside with their respective owners.
General security recommendations: For any installation of software-related ABB products we strongly recommend the following (non-exhaustive) list of cyber security practices: - Isolate special purpose networks (e.g. for automation systems) and remote devices behind firewalls and separate them from any general-purpose network (e.g. office or home networks). - Install physical controls so no unauthorized personnel can access your devices, components, peripheral equipment, and networks. - Never connect programming software or computers containing programing software to any net-work other than the network for the devices that it is intended for. - Scan all data imported into your environment before use to detect potential malware infections. - Minimize network exposure for all applications and endpoints to ensure that they are not accessible from the Internet unless they are designed for such exposure and the intended use requires such. - Ensure all nodes are always up to date in terms of installed software, operating system, and firmware patches as well as anti-virus and firewall. - When remote access is required, use secure methods, such as Virtual Private Networks (VPNs). Recognize that VPNs may have vulnerabilities and should be updated to the most current version available. Also, understand that VPNs are only as secure as the connected devices.
Purpose: ABB has a rigorous internal cyber security continuous improvement process which involves regular testing with industry leading tools and periodic assessments to identify potential product issues. Occasionally an issue is determined to be a design or coding flaw with implications that may impact product cyber security. When a potential product vulnerability is identified or reported, ABB immediately initiates our vulnerability handling process. This entails validating if the issue is in fact a product issue, identifying root causes, determining what related products may be impacted, developing a remediation, and notifying end users and governmental organizations. The resulting Cyber Security Advisory intends to notify customers of the vulnerability and provide details on which products are impacted, how to mitigate the vulnerability or explain workarounds that minimize the potential risk as much as possible. The release of a Cyber Security Advisory should not be misconstrued as an affirmation or indication of an active threat or ongoing campaign targeting the products mentioned here. If ABB is aware of any specific threats, it will be clearly mentioned in the communication. The publication of this Cyber Security Advisory is an example of ABB’s commitment to the user community in support of this critical topic. Responsible disclosure is an important element in the chain of trust we work to maintain with our many customers. The release of an Advisory provides timely information which is essential to help ensure our customers are fully informed.
Frequently Asked Questions: What causes the vulnerability? - A flaw was found in the Linux kernel's algif_aead cryptographic algorithm interface. An incorrect 'in-place operation' was introduced, where the source and destination data mappings were different. This could lead to unexpected behavior or data integrity issues during cryptographic operations, potentially impacting the reliability of encrypted communications. What is Edgenius? - ABB Ability™ Edgenius is an edge computing platform that - Connects to control systems, devices, and equipment - Collects and contextualizes operational data - Hosts applications that deliver real-time insights and AI-driven recommendations What might an attacker use the vulnerability to do? - Successful exploitation could enable a local user attacker to gain administrative control of the system node, execute arbitrary code, or cause the node to become unavailable. How could an attacker exploit the vulnerability? - An attacker could exploit this vulnerability after obtaining local access to the system. By invoking the Linux kernel’s affected cryptographic interface (algif_aead), the attacker can trigger incorrect memory handling in the kernel. This allows the attacker to escalate privileges from a normal user to full administrative (root) access on the affected system node Could the vulnerability be exploited remotely? - No, to exploit this vulnerability an attacker would need to have local access (physical access or through valid SSH credentials) to an affected system node. What does the update do? - The update resolves the issue by incorporating the security update of the Linux kernel. When this security advisory was issued, had this vulnerability been publicly disclosed? - Yes, this vulnerability has been publicly disclosed. When this security advisory was issued, had ABB received any reports that this vulnerability was being exploited? - No, ABB had not received any information indicating that this vulnerability had been exploited for Edgenius when this security advisory was originally issued.
CVE-2026-31431

CVE‑2026‑31431 (Copy Fail) is a Linux kernel vulnerability that may allow a locally authenticated user or compromised container workload to gain elevated (root) privileges on affected systems. The issue originates in the Linux kernel’s cryptographic subsystem and impacts kernels used by most major Linux distributions released since 2017. Successful exploitation requires local code execution, however, in shared, containerized, or multi‑tenant environments this may increase the security risk

7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE-669 - Incorrect Resource Transfer Between Spheres
Affected products
Product Identifier Version Remediation
Unresolved product id: rfx1 —
Unresolved product id: rfx2 —
Unresolved product id: rfx3 —
Product Identifier Version Remediation
Unresolved product id: rav1 —
Vendor Fix
Mitigation
Unresolved product id: rav2 —
Vendor Fix
Mitigation
Unresolved product id: rav3 —
Vendor Fix
Mitigation
References
To clipboard 

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        "category": "summary",
        "text": "ABB is aware of public reports of a vulnerability CVE\u20112026\u201131431 (Copy Fail) in the product versions listed as affected in the advisory. An update is available that resolves a publicly reported vulnerability.\n\nCVE\u20112026\u201131431 (Copy Fail) is a Linux kernel vulnerability that may allow a locally authenticated user or compromised container workload to gain elevated (root) privileges on affected systems. Once root access is obtained, the attacker can effectively gain complete control of the system\n",
        "title": "Summary"
      },
      {
        "category": "other",
        "text": "For additional instructions and support please contact your local ABB service organization. For contact information, see www.abb.com/contactcenters.\n\nInformation about ABB\u2019s cyber security program and capabilities can be found at www.abb.com/cybersecurity.",
        "title": "Support"
      },
      {
        "category": "legal_disclaimer",
        "text": "The information in this document is subject to change without notice, and should not be construed as a commitment by ABB.\n\nABB provides no warranty, express or implied, including warranties of merchantability and fitness for a particular purpose, for the information contained in this document, and assumes no responsibility for any errors that may appear in this document. In no event shall ABB or any of its suppliers be liable for direct, indirect, special, incidental or consequential damages of any nature or kind arising from the use of this document, or from the use of any hardware or software described in this document, even if ABB or its suppliers have been advised of the possibility of such damages.\n\nThis document and parts hereof must not be reproduced or copied without written permission from ABB, and the contents hereof must not be imparted to a third party nor used for any unauthorized purpose.\n\nAll rights to registrations and trademarks reside with their respective owners.\n",
        "title": "Notice"
      },
      {
        "category": "other",
        "text": "For any installation of software-related ABB products we strongly recommend the following (non-exhaustive) list of cyber security practices:\n- Isolate special purpose networks (e.g. for automation systems) and remote devices behind firewalls and separate them from any general-purpose network (e.g. office or home networks).\n- Install physical controls so no unauthorized personnel can access your devices, components, peripheral equipment, and networks.\n- Never connect programming software or computers containing programing software to any net-work other than the network for the devices that it is intended for.\n- Scan all data imported into your environment before use to detect potential malware infections.\n- Minimize network exposure for all applications and endpoints to ensure that they are not accessible from the Internet unless they are designed for such exposure and the intended use requires such.\n- Ensure all nodes are always up to date in terms of installed software, operating system, and firmware patches as well as anti-virus and firewall.\n- When remote access is required, use secure methods, such as Virtual Private Networks (VPNs). Recognize that VPNs may have vulnerabilities and should be updated to the most current version available. Also, understand that VPNs are only as secure as the connected devices.\n",
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        "title": "Purpose"
      },
      {
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        "text": "What causes the vulnerability?\n- A flaw was found in the Linux kernel\u0027s algif_aead cryptographic algorithm interface. An incorrect \u0027in-place operation\u0027 was introduced, where the source and destination data mappings were different. This could lead to unexpected behavior or data integrity issues during cryptographic operations, potentially impacting the reliability of encrypted communications. \n\nWhat is Edgenius?\n- ABB Ability\u2122 Edgenius is an edge computing platform that\n  - Connects to control systems, devices, and equipment\n  - Collects and contextualizes operational data\n  - Hosts applications that deliver real-time insights and AI-driven recommendations\n\nWhat might an attacker use the vulnerability to do?\n- Successful exploitation could enable a local user attacker to gain administrative control of the system node, execute arbitrary code, or cause the node to become unavailable.\n\nHow could an attacker exploit the vulnerability?\n- An attacker could exploit this vulnerability after obtaining local access to the system. By invoking the Linux kernel\u2019s affected cryptographic interface (algif_aead), the attacker can trigger incorrect memory handling in the kernel. This allows the attacker to escalate privileges from a normal user to full administrative (root) access on the affected system node\n\nCould the vulnerability be exploited remotely? \n- No, to exploit this vulnerability an attacker would need to have local access (physical access or through valid SSH credentials) to an affected system node.\n\nWhat does the update do?\n- The update resolves the issue by incorporating the security update of the Linux kernel. \n\nWhen this security advisory was issued, had this vulnerability been publicly disclosed?\n- Yes, this vulnerability has been publicly disclosed.\n\nWhen this security advisory was issued, had ABB received any reports that this vulnerability was being exploited?\n- No, ABB had not received any information indicating that this vulnerability had been exploited for Edgenius when this security advisory was originally issued.\n",
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    "title": "ABB Ability Edgenius: Copy Fail",
    "tracking": {
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  "vulnerabilities": [
    {
      "cve": "CVE-2026-31431",
      "cwe": {
        "id": "CWE-669",
        "name": "Incorrect Resource Transfer Between Spheres"
      },
      "notes": [
        {
          "category": "description",
          "text": "CVE\u20112026\u201131431 (Copy Fail) is a Linux kernel vulnerability that may allow a locally authenticated user or compromised container workload to gain elevated (root) privileges on affected systems. The issue originates in the Linux kernel\u2019s cryptographic subsystem and impacts kernels used by most major Linux distributions released since 2017.\n\nSuccessful exploitation requires local code execution, however, in shared, containerized, or multi\u2011tenant environments this may increase the security risk\n",
          "title": "CVE description"
        }
      ],
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          "rfx2",
          "rfx3"
        ],
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          "rav1",
          "rav2",
          "rav3"
        ]
      },
      "references": [
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          "category": "external",
          "summary": "NVD - CVE-2026-31431",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-31431"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "The problem is corrected in the following product versions:\n- Edgenius 3.2.4.1\n\nABB recommends that customers apply the update at earliest convenience.\n",
          "product_ids": [
            "rav1",
            "rav2",
            "rav3"
          ]
        },
        {
          "category": "mitigation",
          "details": "Mitigating factors describe conditions and circumstances that make an attack that exploits the vulnerability difficult or less likely to succeed. Refer to section General security recommendations for further advise on how to keep your system secure. Recommended mitigation factors \n - Limit access to ssh or cockpit\n - By default, no additional lower privilege users are present on Edgenius installations\n",
          "product_ids": [
            "rav1",
            "rav2",
            "rav3"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "environmentalScore": 7.8,
            "environmentalSeverity": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "temporalScore": 7.8,
            "temporalSeverity": "HIGH",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "products": [
            "rav1",
            "rav2",
            "rav3"
          ]
        }
      ],
      "title": "CVE-2026-31431"
    }
  ]
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.