CVE-2025-2502 identifies an improper default permissions vulnerability in Lenovo PC Manager, a utility software pre-installed or available on Lenovo personal computers. The vulnerability is classified under CWE-276, indicating that certain files, directories, or resources within the PC Manager software are assigned overly permissive default access rights. This misconfiguration allows a local attacker, who already has some level of access (low privileges), to escalate their privileges to a higher level without requiring user interaction or additional authentication. The CVSS 4.0 vector (AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N) reflects that the attack vector is local, with low complexity, no attack prerequisites, and no user interaction needed. The vulnerability impacts confidentiality, integrity, and availability at a high level, as elevated privileges can lead to unauthorized data access, system modifications, or denial of service. Although no exploits have been reported in the wild yet, the vulnerability's nature makes it a critical concern for endpoint security. Lenovo PC Manager's role in managing system updates and configurations means that compromised elevated access could be leveraged for further system compromise. The affected versions are not explicitly detailed beyond '0', suggesting this may be a newly discovered issue in current or recent releases. The absence of patch links indicates that a fix may still be pending or in development. The vulnerability was reserved in March 2025 and published in late May 2025, reflecting a recent disclosure timeline.

The primary impact of CVE-2025-2502 is unauthorized local privilege escalation on Lenovo PCs running the affected PC Manager software. Attackers with limited local access can exploit this flaw to gain higher system privileges, potentially leading to full system compromise. This can result in unauthorized access to sensitive data, installation of persistent malware, disabling of security controls, or disruption of system operations. For organizations, this vulnerability undermines endpoint security, increasing the risk of insider threats or lateral movement by attackers who gain initial footholds through phishing or other means. Since Lenovo PCs are widely deployed in corporate, government, and consumer environments worldwide, the scope of affected systems is broad. The lack of required user interaction and low complexity of exploitation further elevate the risk. If exploited in targeted attacks, this vulnerability could facilitate espionage, data breaches, or sabotage, especially in high-value sectors such as finance, defense, and critical infrastructure.

Immediate mitigation involves restricting local user permissions and auditing file and resource permissions related to Lenovo PC Manager to identify and correct overly permissive settings manually where feasible. Organizations should enforce the principle of least privilege for all local accounts and monitor for unusual privilege escalation attempts. Lenovo should prioritize releasing a security patch that corrects the default permissions to enforce secure access controls. Until patches are available, deploying endpoint detection and response (EDR) solutions to detect suspicious local privilege escalation behaviors is advisable. Additionally, organizations can implement application whitelisting and restrict access to PC Manager components to trusted administrators only. Regularly updating all Lenovo software and firmware, combined with user education on the risks of local access compromise, will reduce exploitation likelihood. Incident response plans should include procedures for detecting and responding to privilege escalation events on Lenovo endpoints.