CVE-2022-3058 is a high-severity use-after-free vulnerability identified in the Sign-In Flow component of Google Chrome versions prior to 105.0.5195.52. This vulnerability arises when a remote attacker convinces a user to perform specific user interface (UI) interactions, which then trigger a use-after-free condition in the browser's memory management. Use-after-free vulnerabilities occur when a program continues to use a pointer after the memory it points to has been freed, leading to undefined behavior such as heap corruption. In this case, the crafted UI interactions can cause heap corruption, potentially allowing the attacker to execute arbitrary code, escalate privileges, or cause a denial of service. The vulnerability is exploitable remotely over the network without requiring prior authentication, but it does require user interaction, specifically engaging with the malicious UI elements crafted by the attacker. The CVSS v3.1 base score is 8.8, indicating a high severity with the vector AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H, meaning it is remotely exploitable with low attack complexity, no privileges required, user interaction needed, unchanged scope, and high impact on confidentiality, integrity, and availability. Although no public exploits have been reported in the wild at the time of publication, the potential impact is significant given Chrome's widespread use and the critical nature of the vulnerability. The vulnerability is classified under CWE-416 (Use After Free), a common and dangerous memory corruption issue. No specific patch links are provided here, but the vulnerability affects versions prior to 105.0.5195.52, so updating to this or later versions is essential to remediation.

For European organizations, the impact of CVE-2022-3058 can be substantial due to the widespread use of Google Chrome as a primary web browser in enterprise and consumer environments. Successful exploitation could lead to remote code execution within the context of the browser, allowing attackers to bypass security controls, steal sensitive data, manipulate user sessions, or deploy malware. This could compromise confidentiality by exposing personal and corporate data, integrity by altering data or browser behavior, and availability by crashing the browser or system. Given the vulnerability requires user interaction, phishing or social engineering campaigns could be used to trick employees into triggering the exploit, increasing the risk to organizations with less mature security awareness programs. The vulnerability's remote exploitability and high impact make it a critical concern for sectors handling sensitive information such as finance, healthcare, government, and critical infrastructure within Europe. Additionally, the potential for heap corruption could be leveraged to escalate privileges or move laterally within networks, amplifying the threat.

European organizations should prioritize immediate patching by upgrading all affected Google Chrome installations to version 105.0.5195.52 or later, where the vulnerability is fixed. Beyond patching, organizations should implement targeted user awareness training focused on recognizing and avoiding suspicious UI interactions and phishing attempts that could trigger such vulnerabilities. Deploying endpoint detection and response (EDR) solutions capable of monitoring unusual browser behavior or heap corruption indicators can provide early detection of exploitation attempts. Network-level controls such as web filtering and sandboxing of untrusted web content can reduce exposure to malicious sites hosting exploit payloads. Organizations should also enforce strict browser security configurations, including disabling unnecessary extensions and enabling site isolation features to limit the impact of potential exploits. Regular vulnerability scanning and asset inventory management will help ensure no outdated Chrome versions remain in use. Finally, incident response plans should be updated to include scenarios involving browser-based use-after-free exploits to enable rapid containment and remediation.