What is CVE-2026-86556?

CVE-2026-86556 is a medium-severity vulnerability in ZTE U30 Air, classified under Improper Privilege Management. CVSS score: 5.3/10. Published 2026-09-30.

How severe is CVE-2026-86556?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Privilege escalation in ZTE U30 Air

CVE-2026-86556

There is an information disclosure vulnerability in ZTE U30 Air. Due to improper permission control, attackers can exploit the vulnerability to obtain relevant information.

Vulnerability class: Privilege Escalation

Published 2026-09-30.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

ZTE U30 Air — versions U30AirV1.0.0B31 and earlier

Weakness classification (CWE)

CWE-269 — Improper Privilege Management

References

support.zte.com.cn/zte-iccp-isupport-webui/bulletin/detail/3351503523831148854

Frequently asked questions

What is CVE-2026-86556?: CVE-2026-86556 is a medium-severity vulnerability in ZTE U30 Air, classified under Improper Privilege Management. CVSS score: 5.3/10. Published 2026-09-30.
How severe is CVE-2026-86556?: Medium severity. CVSS v3 base score is 5.3 out of 10.