CVE-2023-28831: siemens simatic braumat Integer Overflow or Wraparound

Vulnerability summary

CVE-2023-28831 is a high (CVSS 8.7) Integer Overflow or Wraparound vulnerability in siemens simatic braumat. EPSS estimates a 1.13% chance of exploitation in the next 30 days, higher than 65.8% of scored vulnerabilities.

Timeline

1. 12-09-2023
   PublishedVulnerability first disclosed.
2. 11-11-2025
   Last modifiedVulnerability information updated.

Description

The OPC UA implementations (ANSI C and C++) in affected products contain an integer overflow vulnerability that could cause the application to run into an infinite loop during certificate validation. This could allow an unauthenticated remote attacker to create a denial of service condition by sending a specially crafted certificate.

• CWE-190Integer Overflow or WraparoundThe product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.