CVE-2026-40004
MediumWhat is CVE-2026-40004?
There exists an openssl.cnf privilege escalation vulnerability in ZTE Cloud PC client uSmartview. An attacker can execute arbitrary code locally and escalate privileges.
CVSS Vector Breakdown
CVSS 3.1Requires physical presence — attacker must physically touch the device (e.g. USB port).
Exploit requires specific conditions, timing, or configuration to succeed.
Basic user account required (e.g. standard login without admin rights).
Victim must take an action (e.g. click a link, open a file) for the exploit to succeed.
Exploiting the vulnerability can affect other components beyond the vulnerable one.
Complete loss of confidentiality. All data on the component may be exposed.
Attacker can modify some data, but scope or consequence is limited.
No availability impact. Service remains fully operational.
FAQ
CVE-2026-40004 has a CVSS score of 5.5/10, rated as Medium. Review the affected products list and apply vendor patches.
CVSS (Common Vulnerability Scoring System) rates vulnerability severity from 0.0 to 10.0. CVE-2026-40004 scores 5.5/10 (Medium). Scores 9.0–10.0 are Critical, 7.0–8.9 are High, 4.0–6.9 are Medium, and below 4.0 are Low.
The list of devices confirmed to be affected by CVE-2026-40004 is shown in the "Affected Devices" section above. Check your firmware version against the vendor security advisory and apply the latest patch.
Apply the latest firmware or software update from the vendor. Check the References section above for official advisories and patch notes. If no patch is available, consider disabling the affected feature or isolating the device from untrusted networks.