CVE-2025-30664 is a vulnerability identified in Zoom Communications, Inc's Zoom Workplace Apps, classified under CWE-74, which pertains to improper neutralization of special elements in output used by a downstream component, commonly known as an injection flaw. This vulnerability arises when the application fails to adequately sanitize or neutralize special characters or elements before passing data to another component, potentially allowing an authenticated user with local access to escalate their privileges. The attack vector is local (AV:L), requiring low attack complexity (AC:L) and low privileges (PR:L), but does require user interaction (UI:R). The vulnerability impacts confidentiality and integrity significantly (both rated high), but does not affect availability. The CVSS 3.1 base score is 6.6, indicating a medium severity level. The flaw could allow an attacker who already has some level of access to the system to manipulate the application’s output processing, potentially executing unauthorized commands or gaining elevated rights, which could lead to unauthorized access to sensitive information or control over application functions. No known exploits are currently reported in the wild, and no patches have been linked yet. The vulnerability affects certain versions of Zoom Workplace Apps, though specific versions are not detailed here. Given the nature of the vulnerability, it is primarily a local privilege escalation issue requiring authentication and user interaction, limiting its exploitation scope but still posing a significant risk in environments where Zoom Workplace Apps are used extensively.

For European organizations, this vulnerability poses a risk primarily in environments where Zoom Workplace Apps are deployed, especially in sectors handling sensitive or regulated data such as finance, healthcare, and government. The ability for an authenticated user to escalate privileges locally could lead to unauthorized access to confidential communications, internal documents, or administrative functions within the app, potentially resulting in data breaches or disruption of business processes. Since the vulnerability affects confidentiality and integrity, it could undermine trust in secure communications and collaboration tools, which are critical for compliance with regulations like GDPR. The requirement for local access and user interaction somewhat limits remote exploitation, but insider threats or compromised endpoints could exploit this vulnerability to gain elevated privileges, increasing the risk of lateral movement within networks. Organizations relying heavily on Zoom Workplace Apps for internal collaboration and workflow automation should be particularly vigilant, as exploitation could disrupt operational continuity and expose sensitive information.

European organizations should implement the following specific mitigation measures: 1) Monitor and restrict local access to systems running Zoom Workplace Apps, enforcing strict access controls and least privilege principles to minimize the risk of unauthorized local user actions. 2) Educate users about the risks of interacting with potentially malicious content or prompts within the app to reduce the likelihood of user interaction-based exploitation. 3) Employ application whitelisting and endpoint protection solutions capable of detecting anomalous behavior indicative of privilege escalation attempts. 4) Regularly audit and review user privileges within the Zoom Workplace environment to ensure no excessive permissions are granted unnecessarily. 5) Stay informed on Zoom’s official security advisories and apply patches promptly once available, as no patches are currently linked. 6) Consider network segmentation to isolate systems running vulnerable versions of Zoom Workplace Apps, limiting potential lateral movement. 7) Implement robust logging and monitoring to detect suspicious activities related to privilege escalation or injection attempts within the app. These targeted actions go beyond generic advice by focusing on controlling local access, user behavior, and proactive monitoring tailored to the vulnerability’s characteristics.