Summary
ABB became aware of vulnerability in the product versions listed as affected in the advisory. An update is now available that addresses and remediates the vulnerability. A network attacker could exploit the vulnerabilities to execute remote code, initiate DoS attacks, conduct DNS cache poisoning, or extract sensitive information.
The following versions of ABB B&R PCs are affected:
- APC4100 <1.09, 1.09 (CVE-2023-45229, CVE-2023-45230, CVE-2023-45231, CVE-2023-45232, CVE-2023-45233, CVE-2023-45234, CVE-2023-45235, CVE-2023-45236, CVE-2023-45237)
- APC910 <=1.25 (CVE-2023-45229, CVE-2023-45230, CVE-2023-45231, CVE-2023-45232, CVE-2023-45233, CVE-2023-45234, CVE-2023-45235, CVE-2023-45236, CVE-2023-45237)
- C80 <1.14, 1.14 (CVE-2023-45229, CVE-2023-45230, CVE-2023-45231, CVE-2023-45232, CVE-2023-45233, CVE-2023-45234, CVE-2023-45235, CVE-2023-45236, CVE-2023-45237)
- MPC3100 <1.24, 1.24 (CVE-2023-45229, CVE-2023-45230, CVE-2023-45231, CVE-2023-45232, CVE-2023-45233, CVE-2023-45234, CVE-2023-45235, CVE-2023-45236, CVE-2023-45237)
- PPC1200 <1.14, 1.14 (CVE-2023-45229, CVE-2023-45230, CVE-2023-45231, CVE-2023-45232, CVE-2023-45233, CVE-2023-45234, CVE-2023-45235, CVE-2023-45236, CVE-2023-45237)
- PPC900 <2.16, 2.16 (CVE-2023-45229, CVE-2023-45230, CVE-2023-45231, CVE-2023-45232, CVE-2023-45233, CVE-2023-45234, CVE-2023-45235, CVE-2023-45236, CVE-2023-45237)
- APC2200 <1.35, 1.35 (CVE-2023-45229, CVE-2023-45230, CVE-2023-45231, CVE-2023-45232, CVE-2023-45233, CVE-2023-45234, CVE-2023-45235, CVE-2023-45236, CVE-2023-45237)
- PPC2200 <1.35, 1.35 (CVE-2023-45229, CVE-2023-45230, CVE-2023-45231, CVE-2023-45232, CVE-2023-45233, CVE-2023-45234, CVE-2023-45235, CVE-2023-45236, CVE-2023-45237)
- APC3100 <1.45, 1.45 (CVE-2023-45229, CVE-2023-45230, CVE-2023-45231, CVE-2023-45232, CVE-2023-45233, CVE-2023-45234, CVE-2023-45235, CVE-2023-45236, CVE-2023-45237)
- PPC3100 <1.45, 1.45 (CVE-2023-45229, CVE-2023-45230, CVE-2023-45231, CVE-2023-45232, CVE-2023-45233, CVE-2023-45234, CVE-2023-45235, CVE-2023-45236, CVE-2023-45237)
| CVSS | Vendor | Equipment | Vulnerabilities |
|---|---|---|---|
| v3 8.3 | ABB | ABB B&R PCs | Out-of-bounds Read, Improper Restriction of Operations within the Bounds of a Memory Buffer, Loop with Unreachable Exit Condition (‘Infinite Loop’), Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG) |
Background
- Critical Infrastructure Sectors: Energy
- Countries/Areas Deployed: Worldwide
- Company Headquarters Location: Switzerland
Vulnerabilities
CVE-2023-45229
EDK2’s Network Package is susceptible to an out-of-bounds read vulnerability when processing the IA_NA or IA_TA option in a DHCPv6 Advertise message. This vulnerability can be exploited by an attacker to gain unauthorized access and potentially lead to a loss of Confidentiality.
Affected Products
ABB B&R PCs
Vendor:
ABB
Product Version:
ABB APC4100 <1.09, ABB APC910 <=1.25, ABB C80 <1.14, ABB MPC3100 <1.24, ABB PPC1200 <1.14, ABB PPC900 <2.16, ABB APC2200 <1.35, ABB PPC2200 <1.35, ABB APC3100 <1.45, ABB PPC3100 <1.45
Product Status:
fixed, known_affected
Relevant CWE: CWE-125 Out-of-bounds Read
Metrics
CVE-2023-45230
EDK2’s Network Package is susceptible to a buffer overflow vulnerability via a long server ID option in DHCPv6 client. This vulnerability can be exploited by an attacker to gain unauthorized access and potentially lead to a loss of Confidentiality, Integrity and/or Availability.
Affected Products
ABB B&R PCs
Vendor:
ABB
Product Version:
ABB APC4100 <1.09, ABB APC910 <=1.25, ABB C80 <1.14, ABB MPC3100 <1.24, ABB PPC1200 <1.14, ABB PPC900 <2.16, ABB APC2200 <1.35, ABB PPC2200 <1.35, ABB APC3100 <1.45, ABB PPC3100 <1.45
Product Status:
fixed, known_affected
Relevant CWE: CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer
Metrics
CVE-2023-45231
EDK2’s Network Package is susceptible to an out-of-bounds read vulnerability when processing Neighbor Discovery Redirect message. This vulnerability can be exploited by an attacker to gain unauthorized access and potentially lead to a loss of Confidentiality.
Affected Products
ABB B&R PCs
Vendor:
ABB
Product Version:
ABB APC4100 <1.09, ABB APC910 <=1.25, ABB C80 <1.14, ABB MPC3100 <1.24, ABB PPC1200 <1.14, ABB PPC900 <2.16, ABB APC2200 <1.35, ABB PPC2200 <1.35, ABB APC3100 <1.45, ABB PPC3100 <1.45
Product Status:
fixed, known_affected
Relevant CWE: CWE-125 Out-of-bounds Read
Metrics
CVE-2023-45232
EDK2’s Network Package is susceptible to an infinite loop vulnerability when parsing unknown options in the Destination Options header of IPv6. This vulnerability can be exploited by an attacker to gain unauthorized access and potentially lead to a loss of Availability.
Affected Products
ABB B&R PCs
Vendor:
ABB
Product Version:
ABB APC4100 <1.09, ABB APC910 <=1.25, ABB C80 <1.14, ABB MPC3100 <1.24, ABB PPC1200 <1.14, ABB PPC900 <2.16, ABB APC2200 <1.35, ABB PPC2200 <1.35, ABB APC3100 <1.45, ABB PPC3100 <1.45
Product Status:
fixed, known_affected
Relevant CWE: CWE-835 Loop with Unreachable Exit Condition (‘Infinite Loop’)
Metrics
CVE-2023-45233
EDK2’s Network Package is susceptible to an infinite loop vulnerability when parsing a PadN option in the Destination Options header of IPv6. This vulnerability can be exploited by an attacker to gain unauthorized access and potentially lead to a loss of Availability.
Affected Products
ABB B&R PCs
Vendor:
ABB
Product Version:
ABB APC4100 <1.09, ABB APC910 <=1.25, ABB C80 <1.14, ABB MPC3100 <1.24, ABB PPC1200 <1.14, ABB PPC900 <2.16, ABB APC2200 <1.35, ABB PPC2200 <1.35, ABB APC3100 <1.45, ABB PPC3100 <1.45
Product Status:
fixed, known_affected
Relevant CWE: CWE-835 Loop with Unreachable Exit Condition (‘Infinite Loop’)
Metrics
CVE-2023-45234
EDK2’s Network Package is susceptible to a buffer overflow vulnerability when processing DNS Servers option from a DHCPv6 Advertise message. This vulnerability can be exploited by an attacker to gain unauthorized access and potentially lead to a loss of Confidentiality, Integrity and/or Availability.
Affected Products
ABB B&R PCs
Vendor:
ABB
Product Version:
ABB APC4100 <1.09, ABB APC910 <=1.25, ABB C80 <1.14, ABB MPC3100 <1.24, ABB PPC1200 <1.14, ABB PPC900 <2.16, ABB APC2200 <1.35, ABB PPC2200 <1.35, ABB APC3100 <1.45, ABB PPC3100 <1.45
Product Status:
fixed, known_affected
Relevant CWE: CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer
Metrics
CVE-2023-45235
EDK2’s Network Package is susceptible to a buffer overflow vulnerability when handling Server ID option from a DHCPv6 proxy Advertise message. This vulnerability can be exploited by an attacker to gain unauthorized access and potentially lead to a loss of Confidentiality, Integrity and/or Availability.
Affected Products
ABB B&R PCs
Vendor:
ABB
Product Version:
ABB APC4100 <1.09, ABB APC910 <=1.25, ABB C80 <1.14, ABB MPC3100 <1.24, ABB PPC1200 <1.14, ABB PPC900 <2.16, ABB APC2200 <1.35, ABB PPC2200 <1.35, ABB APC3100 <1.45, ABB PPC3100 <1.45
Product Status:
fixed, known_affected
Relevant CWE: CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer
Metrics
CVE-2023-45236
EDK2’s Network Package is susceptible to a predictable TCP Initial Sequence Number. This vulnerability can be exploited by an attacker to gain unauthorized access and potentially lead to a loss of Confidentiality.
Affected Products
ABB B&R PCs
Vendor:
ABB
Product Version:
ABB APC4100 <1.09, ABB APC910 <=1.25, ABB C80 <1.14, ABB MPC3100 <1.24, ABB PPC1200 <1.14, ABB PPC900 <2.16, ABB APC2200 <1.35, ABB PPC2200 <1.35, ABB APC3100 <1.45, ABB PPC3100 <1.45
Product Status:
fixed, known_affected
Relevant CWE: CWE-338 Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)
Metrics
CVE-2023-45237
EDK2’s Network Package is susceptible to a predictable TCP Initial Sequence Number. This vulnerability can be exploited by an attacker to gain unauthorized access and potentially lead to a loss of Confidentiality.
Affected Products
ABB B&R PCs
Vendor:
ABB
Product Version:
ABB APC4100 <1.09, ABB APC910 <=1.25, ABB C80 <1.14, ABB MPC3100 <1.24, ABB PPC1200 <1.14, ABB PPC900 <2.16, ABB APC2200 <1.35, ABB PPC2200 <1.35, ABB APC3100 <1.45, ABB PPC3100 <1.45
Product Status:
fixed, known_affected
Relevant CWE: CWE-338 Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)
Metrics
Acknowledgments
- ABB PSIRT reported these vulnerabilities to CISA.
Notice
The information in this document is subject to change without notice, and should not be construed as a commitment by B&R. B&R 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 B&R 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 B&R 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 B&R, 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.
Frequently Asked Questions
What is the scope of the vulnerabilities? – A network attacker who successfully exploited these vulnerabilities to execute remote code, initiate DoS attacks, conduct DNS cache poisoning, or extract sensitive information. In worst case, these vulnerabilities can be exploited by an attacker to gain unauthorized access and potentially lead to a loss of Confidentiality, Integrity and/or Availability. What causes the vulnerabilities? – The vulnerabilities are caused by usage of vulnerable UEFI firmware in some B&R xPCs. What is a B&R xPC? – A B&R xPC is an industrial PC (IPC) designed for use in industrial environments and is built to handle more demanding conditions than a standard PC. They often feature robust construction, resistance to dust and moisture, extended temperature ranges, and other specifications suited for industrial applications. What might an attacker use the vulnerabilities to do? – A network attacker who successfully exploited the vulnerabilities could execute remote code, initiate DoS attacks, conduct DNS cache poisoning, or extract sensitive information. How could an attacker exploit the vulnerabilities? – An attacker could try to exploit the vulnerabilities by creating a specially crafted message and sending the message to an affected system node. This would require that the attacker has access to the system network, by connecting to the network either directly or through a wrongly configured or penetrated firewall, or that he installs malicious software on a system node or otherwise infects the network with malicious software. Recommended practices help mitigate such attacks, see section Mitigating Factors above. Could the vulnerabilities be exploited remotely? – Yes, an attacker who has network access to an affected system node could exploit this vulnerability. Recommended practices include that process control systems are physically protected, have no direct connections to the Internet, and are separated from other networks by means of a firewall system that has a minimal number of ports exposed. What does the update do? – The update removes the vulnerabilities in the TCP/IP stack used by the UEFI firmware. When this security advisory was issued, had these vulnerabilities been publicly disclosed? – Yes, these vulnerabilities have been publicly disclosed. When this security advisory was issued, had B&R received any reports that this vulnerability was being exploited on B&R products? – No, B&R had not received any information indicating that this vulnerability had been exploited on B&R products when this security advisory was originally issued.
Legal Notice and Terms of Use
This product is provided subject to this Notification (https://www.cisa.gov/notification) and this Privacy & Use policy (https://www.cisa.gov/privacy-policy).
Recommended Practices
CISA recommends users take defensive measures to minimize the exploitation risk of this vulnerability.
Minimize network exposure for all control system devices and/or systems, and ensure they are not accessible from the internet.
Locate control system networks and remote devices behind firewalls and isolate them from business networks.
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 recent version available. Also recognize VPN is only as secure as its connected devices.
CISA reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures.
CISA also provides a section for control systems security recommended practices on the ICS webpage on cisa.gov. 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.
CISA encourages organizations to implement recommended cybersecurity strategies for proactive defense of ICS assets. Additional mitigation guidance and recommended practices are publicly available on the ICS webpage at cisa.gov in the technical information paper, ICS-TIP-12-146-01B–Targeted Cyber Intrusion Detection and Mitigation Strategies.
Organizations observing suspected malicious activity should follow established internal procedures and report findings to CISA for tracking and correlation against other incidents.
Advisory Conversion Disclaimer
This ICSA is a verbatim republication of ABB PSIRT SA24P003 from a direct conversion of the vendor’s Common Security Advisory Framework (CSAF) advisory. This is republished to CISA’s website as a means of increasing visibility and is provided “as-is” for informational purposes only. CISA is not responsible for the editorial or technical accuracy of republished advisories and provides no warranties of any kind regarding any information contained within this advisory. Further, CISA does not endorse any commercial product or service. Please contact ABB PSIRT directly for any questions regarding this advisory.
Revision History
- Initial Release Date: 2026-01-29
| Date | Revision | Summary |
|---|---|---|
| 2026-01-29 | 1 | Initial version. |
| 2026-05-21 | 2 | Initial CISA Republication of ABB PSIRT SA24P003 advisory |
