CVE-2026-40436: ZTE ZXEDM iEMS password reset vulnerability in cloud EMS portal

CVE-2026-40436 · Severity: high · CVSS 7.1 · Published 2026-04-13

ZTE ZXEDM iEMS, a management system for cloud-based Element Management Systems (EMS), contains a security flaw that allows unauthorized access to user data. Attackers can exploit this to view a complete list of system users and subsequently reset their passwords. This could lead to a total takeover of user accounts, allowing unauthorized individuals to perform administrative operations and disrupt critical network management services.

Vendors: Zte.

Quick answers

Is CVE-2026-40436 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-40436 being exploited in the wild.
How severe is CVE-2026-40436?
High severity, with a CVSS score of 7.1, published 13 April 2026.
Which products and versions are affected?
ZTE ZXEDM iEMS 16.25.42.04.
Is there a fix for CVE-2026-40436?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-40436 attacked?
It is attacked over the network, in a network appliance.
Am I affected by CVE-2026-40436?
Check whether you run Zte Zxedm Iems or Zte Zxesm Iems. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

A vulnerability in the ZTE ZXEDM iEMS cloud portal stems from improper access control on the user list acquisition interface. A network-based attacker can exploit this lack of authorization to retrieve sensitive information for all registered users. With this information, the attacker can trigger a password reset for any account. While the vendor's CVSS vector suggests some complexity (AC:H) and user interaction (UI:R) may be involved, the primary root cause is a failure to restrict access to administrative user-management functions. Successful exploitation allows for unauthorized operations and full account compromise.

Affected products

  • ZTE ZXEDM iEMS 16.25.42.04

Timeline

  • 2026-04-13: disclosed
  • 2026-04-13: advisory

References

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