CVE intelligence and bounded remediation

CVE-2021-1903 — Qualcomm Aqt1000 Firmware security vulnerability

Medium CVSS 5.3

Possible denial of service scenario can occur due to lack of length check on Channel Switch Announcement IE in beacon or probe response frame in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer Electronics Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wired Infrastructure and Networking

Severity
Medium
CVSS
5.3 (3.1)
Published
2021-11-12
CISA KEV
Not currently listed
Ecosystem
operating-system
Weaknesses
CWE-863

Affected products

  • qualcomm / aqt1000_firmware
  • qualcomm / ar8031_firmware
  • qualcomm / ar8035_firmware
  • qualcomm / ar9380_firmware
  • qualcomm / csr8811_firmware
  • qualcomm / csra6620_firmware

Showing 6 representative product identities from 206 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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