CVE intelligence and bounded remediation

CVE-2021-21732 — A mobile phone of ZTE is impacted by improper access control vulnerability

High CVSS 7.5

A mobile phone of ZTE is impacted by improper access control vulnerability. Due to improper permission settings, third-party applications can read some files in the proc file system without authorization. Attackers could exploit this vulnerability to obtain sensitive information. This affects Axon 11 5G ZTE/CN_P725A12/P725A12:10/QKQ1.200816.002/20201116.175317:user/release-keys.

Severity
High
CVSS
7.5 (3.1)
Published
2021-05-19
CISA KEV
Not currently listed
Ecosystem
operating-system

Affected products

  • zte / axon_11_5g_firmware

Matched remediation archetype

Information disclosure and sensitive data exposure

This catalog composition supplies bounded fallback guidance. Explicitly reviewed curated workflows load with the complete record below.

Check exposure

  • Trace sensitive data through responses, errors, logs, metrics, traces, caches, exports, files, backups, and client bundles.
  • Identify affected subjects, tenants, retention windows, access controls, and downstream copies without opening unnecessary sensitive records.
  • Review metadata, timing, status, length, and existence signals as well as direct content disclosure.

Remediate safely

  • Minimize collection and output, apply field-level authorization and redaction at a centralized boundary, and return generic external errors.
  • Remove secrets and sensitive data from logs, artifacts, URLs, caches, and client-side bundles; rotate credentials that may have been exposed.
  • Update the affected component and add synthetic-data tests for response, error, observability, and export paths.

Authoritative sources

Complete CVE record and remediation plan

The detailed catalog view below loads this exact record, its source evidence, and the full seven-phase agentic change plan.