CVE-2025-20329 is a vulnerability identified in the logging component of Cisco TelePresence Collaboration Endpoint (CE) and Cisco RoomOS Software. The flaw exists because certain unencrypted credentials are stored in audit logs when SIP media component logging is enabled. An attacker with valid administrative credentials can remotely access these logs either stored locally on the device or in the Webex Cloud, thereby obtaining sensitive information that should not be exposed, including credentials and potentially personally identifiable information (PII). The vulnerability affects a wide range of RoomOS versions from 10.3.x through 11.28.x, indicating a long-standing issue across multiple releases. The CVSS v3.1 base score is 4.9 (medium severity), reflecting that exploitation requires high privileges (administrative access) but can be performed remotely without user interaction. The vulnerability does not impact system integrity or availability directly but compromises confidentiality by exposing sensitive credentials. No public exploits have been reported yet, but the risk remains significant due to the sensitive nature of the leaked data and the potential for lateral movement or privilege escalation if credentials are reused elsewhere. The vulnerability underscores the risk of improper logging practices that store sensitive data in clear text, violating security best practices for credential management and audit logging.

For European organizations, this vulnerability poses a confidentiality risk, especially for entities relying on Cisco RoomOS for video conferencing and collaboration. Exposure of administrative credentials could lead to unauthorized access to collaboration endpoints, enabling attackers to eavesdrop on communications, access confidential meetings, or pivot to other internal systems. Organizations handling sensitive or regulated data (e.g., GDPR-protected PII) face compliance risks if such data is exposed. The impact is heightened in sectors such as government, finance, healthcare, and critical infrastructure where Cisco RoomOS devices are deployed extensively. Additionally, the breach of credentials could facilitate further attacks, including identity theft or corporate espionage. Although exploitation requires administrative credentials, insider threats or compromised admin accounts increase the risk. The lack of user interaction for exploitation means automated attacks could be feasible once credentials are obtained. The vulnerability also raises concerns about cloud-stored logs (Webex Cloud), where centralized log access could amplify the impact if cloud account credentials are compromised.

1. Immediately audit and restrict administrative access to Cisco RoomOS devices and Webex Cloud logs to trusted personnel only, employing the principle of least privilege. 2. Disable SIP media component logging if not essential, to prevent sensitive credentials from being logged in clear text. 3. Apply any available patches or updates from Cisco addressing this vulnerability as soon as they are released. 4. Implement strong multi-factor authentication (MFA) for all administrative accounts to reduce the risk of credential compromise. 5. Regularly review and securely manage audit logs, ensuring sensitive information is redacted or encrypted where possible. 6. Monitor logs and network activity for unusual access patterns to collaboration endpoints or log repositories. 7. Educate administrators on the risks of credential exposure through logging and enforce secure logging configurations. 8. Consider network segmentation to isolate collaboration devices from critical systems to limit lateral movement if credentials are compromised. 9. Conduct periodic security assessments and penetration tests focusing on collaboration infrastructure to detect potential exploitation attempts.