CVE-2023-0705 is a high-severity integer overflow vulnerability found in the Core component of Google Chrome versions prior to 110.0.5481.77. The flaw arises from improper handling of integer values, which can lead to an overflow condition. Exploiting this vulnerability requires triggering a race condition, which then potentially allows a remote attacker to cause heap corruption by delivering a specially crafted HTML page to a victim's browser. Heap corruption can lead to arbitrary code execution, compromising the confidentiality, integrity, and availability of the affected system. The vulnerability is remotely exploitable without requiring privileges but does require user interaction, such as visiting a malicious webpage. The CVSS v3.1 base score is 7.5, reflecting high severity due to the potential for complete system compromise. Although no known exploits are currently reported in the wild, the technical complexity is moderate given the need to exploit a race condition. The vulnerability is categorized under CWE-190 (Integer Overflow or Wraparound), which is a common source of memory corruption issues. This vulnerability affects Google Chrome, a widely used web browser globally, making it a significant threat vector for web-based attacks.

For European organizations, this vulnerability poses a substantial risk due to the widespread use of Google Chrome across enterprises, government agencies, and critical infrastructure sectors. Successful exploitation could lead to unauthorized code execution within user environments, enabling attackers to steal sensitive data, deploy malware, or move laterally within networks. Given the browser's role as a primary interface to the internet and cloud services, exploitation could facilitate further attacks such as credential theft or ransomware deployment. The requirement for user interaction (visiting a malicious webpage) means phishing campaigns or compromised legitimate websites could serve as attack vectors. The potential impact on confidentiality, integrity, and availability is high, especially for organizations handling sensitive personal data under GDPR regulations, where breaches can result in significant legal and financial penalties. Additionally, disruption of services due to compromised endpoints could affect business continuity and operational resilience.

European organizations should prioritize updating Google Chrome to version 110.0.5481.77 or later, where this vulnerability is patched. Automated patch management systems should be employed to ensure timely deployment across all endpoints. Network security controls such as web filtering and URL reputation services can help block access to known malicious sites that might exploit this vulnerability. User awareness training should emphasize the risks of interacting with suspicious links or websites to reduce the likelihood of triggering the exploit. Employing endpoint detection and response (EDR) solutions can help identify anomalous behaviors indicative of exploitation attempts. Additionally, organizations should consider implementing browser isolation technologies to contain potential threats from web content. Regular vulnerability scanning and penetration testing should include checks for outdated browser versions to maintain compliance and security posture.