CVE-2025-62484 is a vulnerability identified in Zoom Communications Inc.'s Zoom Workplace product, specifically affecting client versions before 6.5.10. The root cause is inefficient regular expression complexity (CWE-1333), which can be exploited by an unauthenticated attacker over the network to escalate privileges. This means that crafted input exploiting the inefficient regex processing can cause the application to behave in unintended ways, potentially allowing attackers to gain higher-level access than permitted. The vulnerability requires user interaction, likely involving the victim processing maliciously crafted data or messages, but does not require prior authentication, increasing the attack surface. The CVSS v3.1 score of 8.1 reflects a high severity, with attack vector being network (AV:N), low attack complexity (AC:L), no privileges required (PR:N), user interaction required (UI:R), unchanged scope (S:U), and high impact on confidentiality and integrity (C:H/I:H), but no impact on availability (A:N). Although no exploits are currently known in the wild, the potential for privilege escalation could lead to unauthorized access to sensitive information and manipulation of communications within Zoom Workplace. The vulnerability's exploitation could undermine the trust and security of enterprise communications, especially in environments relying heavily on Zoom Workplace for collaboration and information exchange.

For European organizations, the impact of CVE-2025-62484 could be significant. Zoom Workplace is widely used across various sectors including corporate, governmental, and educational institutions. An attacker exploiting this vulnerability could escalate privileges without authentication, potentially gaining access to confidential communications, sensitive documents, or administrative functions within the Zoom Workplace environment. This could lead to data breaches, espionage, or disruption of business operations. The confidentiality and integrity of communications are at high risk, which is critical for organizations handling sensitive or regulated data under frameworks such as GDPR. Although availability is not directly impacted, the indirect consequences of privilege escalation could include unauthorized changes or data exfiltration. The requirement for user interaction somewhat limits mass exploitation but targeted attacks against high-value individuals or departments remain a serious concern. The lack of known exploits in the wild suggests a window of opportunity for defenders to patch and mitigate before active exploitation occurs.

To mitigate CVE-2025-62484, European organizations should immediately update all Zoom Workplace clients to version 6.5.10 or later, where the vulnerability is addressed. Since no official patch links are provided, organizations should monitor Zoom's official channels for updates and advisories. Network-level defenses should include monitoring for anomalous traffic patterns that could indicate exploitation attempts, such as unusual regex processing loads or malformed packets targeting Zoom Workplace clients. Implementing strict network segmentation and limiting exposure of Zoom Workplace clients to untrusted networks can reduce attack surface. User training to recognize suspicious messages or files that could trigger the vulnerability is also recommended, given the requirement for user interaction. Additionally, organizations should review and tighten privilege assignments within Zoom Workplace to minimize the impact of any potential escalation. Regular vulnerability scanning and penetration testing focused on communication platforms can help detect residual risks. Finally, maintaining comprehensive logging and alerting on Zoom Workplace activity will aid in early detection of exploitation attempts.