# CVE-2026-44409: ZTE MU5250 information disclosure due to improper access control

Source: https://junglewise.ai/threats/cve-2026-44409-zte-mu5250-information-disclosure-due-to-improper-access-control  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-05-22. Updated: 2026-05-22  
License: CC BY 4.0 with a link back

CVE-2026-44409 · Severity: medium · CVSS 5.7 · Published 2026-05-22

An information disclosure vulnerability exists in the ZTE MU5250, a portable 5G Wi-Fi hotspot device. Due to a flaw in how the device manages access permissions, an unauthorized user on the same local network could gain access to sensitive information. This could lead to the exposure of private device data or configuration details.

Vendors: [Zte](https://junglewise.ai/threats/vendors/zte).

## Quick answers

**Is CVE-2026-44409 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-44409 being exploited in the wild.

**How severe is CVE-2026-44409?** Medium severity, with a CVSS score of 5.7, published 22 May 2026.

**Which products and versions are affected?** ZTE MU5250.

**Is there a fix for CVE-2026-44409?** 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-2026-44409 attacked?** It is attacked from the adjacent network, in a network appliance.

**Am I affected by CVE-2026-44409?** Check whether you run Zte MU5250. 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

An information disclosure vulnerability (CWE-200) exists in the ZTE MU5250 portable router. The root cause is an improper configuration of the access control mechanism, which fails to correctly restrict data access to authorized users. An attacker positioned on the adjacent network (e.g., connected to the same Wi-Fi or local network) with low-level privileges can exploit this flaw to retrieve sensitive information without proper authorization. The CVSS vector (AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N) indicates that while the attack requires local proximity and some level of authentication, it results in a high impact on confidentiality. Users are advised to check for firmware updates from ZTE.

## Affected products

- ZTE MU5250

## Timeline

- 2026-05-22: disclosed: Initial disclosure by ZTE Corporation
- 2026-05-22: advisory: NVD record published

## References

- [https://support.zte.com.cn/zte-iccp-isupport-webui/bulletin/detail/3711746568357343342](https://support.zte.com.cn/zte-iccp-isupport-webui/bulletin/detail/3711746568357343342)

## Related threats

- [ZTE MU5250 unauthorized access in web interface](https://junglewise.ai/threats/cve-2026-44408-zte-mu5250-unauthorized-access-in-web-interface)