CVE intelligence and bounded remediation

CVE-2024-58337 — Akuvox S539 Firmware security vulnerability

High CVSS 8.7

Akuvox Smart Intercom S539 contains an improper access control vulnerability that allows users with 'User' privileges to modify API access settings and configurations. Attackers can exploit this vulnerability to escalate privileges and gain unauthorized access to administrative functionalities.

Severity
High
CVSS
8.7 (4.0)
Published
2025-12-30
CISA KEV
Not currently listed
Ecosystem
operating-system
Weaknesses
CWE-862

Affected products

  • akuvox / s539_firmware / 912.30.1.137
  • akuvox / s532_firmware / 912.30.1.137
  • akuvox / x916_firmware / 912.30.1.137
  • akuvox / x915_firmware / 912.30.1.137
  • akuvox / x912_firmware / 912.30.1.137
  • akuvox / r29_firmware / 912.30.1.137

Showing 6 representative product identities from 13 source matches. Confirm exact affected versions with the linked vendor and NVD evidence.

Matched remediation archetype

Authorization bypass, IDOR, and cross-tenant access

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

Check exposure

  • Map object and action authorization checks across API, UI, batch, import/export, and background-job paths.
  • Identify tenant, ownership, role, and policy boundaries for affected resources and administrative operations.
  • Use synthetic fixtures to compare intended access matrices without accessing another user's real data.

Remediate safely

  • Enforce server-side authorization at each resource access and state transition using the authenticated principal and trusted tenant context.
  • Scope data queries by tenant and ownership; treat client-supplied identifiers, roles, and policy claims as untrusted.
  • Add deny-by-default policy tests for horizontal and vertical access across every affected transport.

Authoritative sources

Complete CVE record and remediation plan

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