CVE-2026-44407: ZTE uSmartview format string vulnerability in Cloud PC client

CVE-2026-44407 · Severity: medium · CVSS 4.7 · Published 2026-05-07

A security vulnerability has been identified in the ZTE uSmartview Cloud PC client, a tool used for accessing virtual desktop environments. An attacker could exploit this flaw to cause the application to crash or become unresponsive, potentially disrupting business operations and user access to their remote workstations. This issue is primarily a denial-of-service risk, meaning it affects the availability of the service rather than the confidentiality of user data.

Technologies: Zte Zxcloud Irai. Vendors: Zte.

Quick answers

Is CVE-2026-44407 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-44407 being exploited in the wild.
How severe is CVE-2026-44407?
Medium severity, with a CVSS score of 4.7, published 7 May 2026.
Which products and versions are affected?
Zte uSmartview (ZXCloud iRAI) 7.23.20 to 7.25.43.
Is there a fix for CVE-2026-44407?
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-2026-44407 attacked?
It is attacked over the network or with local access, in a network appliance.
Am I affected by CVE-2026-44407?
Check whether you run Zte uSmartview (ZXCloud iRAI) or Zte Zxcloud Irai at an affected version. 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 denial-of-service vulnerability exists in the ZTE uSmartview client (part of the ZXCloud iRAI suite). The vulnerability is classified as a format string bug (CWE-134) where the application fails to properly validate externally-controlled format strings. This can lead to memory corruption when processing malicious input. While the vendor (ZTE) suggests a local attack vector with medium severity, NVD's analysis indicates a network-based attack vector (AV:N) with high severity, allowing an unauthenticated remote attacker to trigger a crash and cause a denial-of-service condition. The issue affects versions starting from 7.23.20 and is addressed in version 7.25.43.

Affected products

  • ZTE uSmartview (ZXCloud iRAI) 7.23.20 to 7.25.43

Timeline

  • 2026-05-07: disclosed: Initial disclosure by ZTE Corporation
  • 2026-05-07: advisory: CVE-2026-44407 published
  • 2026-05-11: other: NVD analysis and enrichment completed

References

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