CVE-2025-13640 is a security vulnerability identified in Google Chrome's password management implementation prior to version 143.0.7499.41. The issue arises from an inappropriate implementation that allows a local attacker with physical access to the device to bypass authentication mechanisms protecting stored passwords. This means that if an attacker can physically access a device running a vulnerable Chrome version, they could potentially retrieve or misuse saved credentials without needing to authenticate properly. The vulnerability does not appear to be exploitable remotely and does not require user interaction, limiting its attack surface primarily to scenarios involving physical device compromise. The Chromium security team has classified this vulnerability as low severity, likely due to the requirement for physical access and the limited scope of impact. There are no known exploits in the wild, and no CVSS score has been assigned yet. The vulnerability was published on December 2, 2025, and affects Chrome versions before 143.0.7499.41. The lack of patch links suggests that the fixed version is 143.0.7499.41 or later. This vulnerability highlights the importance of securing physical access to devices and timely software updates to prevent unauthorized access to sensitive credentials stored in browsers.

For European organizations, the primary impact of CVE-2025-13640 is the potential unauthorized access to stored passwords on devices running vulnerable Chrome versions if an attacker gains physical access. This could lead to credential theft, unauthorized access to corporate resources, and potential lateral movement within networks. While the vulnerability does not enable remote exploitation, the risk is significant in environments where devices are shared, lost, or stolen, such as in mobile workforces or public-facing terminals. The breach of stored credentials could compromise user accounts, internal systems, and sensitive data, undermining confidentiality and integrity. Given the widespread use of Chrome across European enterprises and public sector organizations, especially in countries with high Chrome market share, this vulnerability could have a broad impact if not addressed. However, the requirement for physical access and the low severity rating reduce the likelihood of widespread exploitation. Nonetheless, organizations with high-value targets or sensitive data should treat this vulnerability seriously to prevent insider threats or opportunistic attacks.

To mitigate CVE-2025-13640, European organizations should immediately update all Chrome installations to version 143.0.7499.41 or later, where the vulnerability is fixed. Beyond patching, organizations should enforce strict physical security controls to prevent unauthorized access to devices, including secure storage, device encryption, and endpoint lockdown policies. Implementing multi-factor authentication (MFA) for accessing sensitive applications can reduce the impact of stolen credentials. Additionally, organizations should consider disabling password saving features in browsers on high-risk or shared devices and encourage the use of dedicated password managers with stronger security controls. Regular audits of device inventory and access logs can help detect potential physical compromise. User training on the risks of leaving devices unattended and the importance of locking screens can further reduce exposure. Finally, integrating endpoint detection and response (EDR) solutions can help identify suspicious local activities indicative of exploitation attempts.