CVE-2025-58294 identifies a permissions and access control vulnerability (CWE-264) within the print module of Huawei's HarmonyOS, specifically affecting versions 5.0.1, 5.1.0, and 6.0.0. The vulnerability stems from insufficient permission enforcement, allowing an unauthenticated local attacker to access confidential service data managed by the print module. The CVSS 3.1 vector (AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N) indicates that the attack requires local access but no privileges or user interaction, with low attack complexity. Successful exploitation compromises confidentiality but does not affect integrity or availability, meaning sensitive information could be leaked without altering system state or causing downtime. No patches have been linked yet, and no known exploits are reported in the wild, suggesting the vulnerability is newly disclosed. The print module's role in managing document printing services makes it a critical component where confidentiality breaches could expose sensitive documents or print job metadata. The vulnerability's presence in multiple HarmonyOS versions indicates a broad potential impact across Huawei devices running these OS versions. Given Huawei's market penetration in mobile and IoT devices, this vulnerability could affect a wide range of endpoints, especially in environments where local access to devices is possible. The lack of required privileges or user interaction lowers the barrier for exploitation by local attackers or malicious insiders.

For European organizations, the confidentiality breach risk posed by this vulnerability could lead to unauthorized disclosure of sensitive documents or print job data, potentially exposing intellectual property, personal data, or confidential business information. Sectors such as government, finance, healthcare, and critical infrastructure that use Huawei HarmonyOS devices for printing or document management are particularly at risk. The local attack vector implies that attackers need physical or local network access, which could be feasible in shared office environments or through compromised internal systems. Although the vulnerability does not affect system integrity or availability, the confidentiality impact alone could result in regulatory non-compliance under GDPR and damage organizational reputation. The absence of known exploits currently reduces immediate risk, but the medium severity score indicates that organizations should proactively address the issue to prevent future exploitation. The broad affected versions mean many deployed devices could be vulnerable, increasing the potential attack surface within European enterprises that utilize Huawei hardware and HarmonyOS.

1. Monitor Huawei’s official security advisories closely and apply patches or updates promptly once available to address this vulnerability. 2. Restrict local access to devices running HarmonyOS, especially those with printing capabilities, by enforcing strict physical security controls and network segmentation to limit exposure. 3. Implement access control policies that limit which users and processes can interact with the print module or related services. 4. Employ endpoint detection and response (EDR) solutions to monitor for unusual local activity or unauthorized access attempts targeting print services. 5. Conduct regular security audits and penetration tests focusing on local privilege escalation and access control weaknesses in HarmonyOS devices. 6. Educate employees about the risks of local device access and enforce policies to prevent unauthorized physical or network access to critical devices. 7. Consider alternative printing solutions or devices if patching is delayed, especially in high-risk environments. 8. Maintain comprehensive logging of print service activities to facilitate forensic investigations if a breach is suspected.