Privilege escalation in ZTE Smartlife

CVE-2026-86552

SmartLife app dynamically generates brand‑new SmartLife application authentication parameters at runtime. With the acquired SmartLife application authentication credentials, an attacker can directly complete registration using any arbitrary email address via the backend interface /account/person/signup.serv. Email ownership is not verified prior to registration.

Vulnerability class: Privilege Escalation

Published · last modified .

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L.

EPSS exploit prediction

EPSS: 0.004 (29.9th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 30th percentile — 29.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2026-86552: held from 0.004 to 0.004.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000

Affected products

  • ZTE Smartlife — versions ZTE_SL_V2.8.2_ABROAD and prior versions

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2026-86552?
CVE-2026-86552 is a medium-severity vulnerability in ZTE Smartlife, classified under Improper Privilege Management. CVSS score: 5.4/10. Published 2026-09-20.
How severe is CVE-2026-86552?
Medium severity. CVSS v3 base score is 5.4 out of 10.
Is CVE-2026-86552 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.