CVE intelligence and bounded remediation

CVE-2023-20112 — Cisco Business 150Ax Firmware security vulnerability

High CVSS 7.4

A vulnerability in Cisco access point (AP) software could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to insufficient validation of certain parameters within 802.11 frames. An attacker could exploit this vulnerability by sending a wireless 802.11 association request frame with crafted parameters to an affected device. A successful exploit could allow the attacker to cause an unexpected reload of an affected device, resulting in a DoS condition.

Severity
High
CVSS
7.4 (3.1)
Published
2023-03-23
CISA KEV
Not currently listed
Ecosystem
operating-system
Weaknesses
CWE-126, CWE-125

Affected products

  • cisco / business_150ax_firmware
  • cisco / business_151axm_firmware
  • cisco / catalyst_9105ax_firmware
  • cisco / catalyst_9105axi_firmware
  • cisco / catalyst_9105axw_firmware
  • cisco / catalyst_9105i_firmware

Showing 6 representative product identities from 31 source matches. Confirm exact affected versions with the linked vendor and NVD evidence.

Matched remediation archetype

Buffer bounds, memory safety, and memory corruption

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

Check exposure

  • Identify affected native-code versions, build flags, architectures, parsers, codecs, drivers, and input paths in all shipped artifacts.
  • Determine whether untrusted data reaches the affected routine and the process privilege, sandbox, and network exposure.
  • Confirm statically linked, vendored, firmware, and platform-provided copies, not only package-manager records.

Remediate safely

  • Apply the maintained upstream correction or replace the affected component, then rebuild every dependent artifact from clean inputs.
  • Adopt bounds-checked interfaces, validated sizes and integer conversions, clear ownership, and memory-safe components where practical.
  • Enable supported compiler and runtime hardening and add sanitized tests and fuzz regression seeds derived from non-weaponized fixtures.

Authoritative sources

Complete CVE record and remediation plan

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