CVE intelligence and bounded remediation

CVE-2023-20003 — Cisco Business 140Ac Access Point Firmware security vulnerability

High CVSS 8.8

A vulnerability in the social login configuration option for the guest users of Cisco Business Wireless Access Points (APs) could allow an unauthenticated, adjacent attacker to bypass social login authentication. This vulnerability is due to a logic error with the social login implementation. An attacker could exploit this vulnerability by attempting to authenticate to an affected device. A successful exploit could allow the attacker to access the Guest Portal without authentication.

Severity
High
CVSS
8.8 (3.1)
Published
2023-05-18
CISA KEV
Not currently listed
Ecosystem
operating-system
Weaknesses
CWE-288, CWE-306

Affected products

  • cisco / business_140ac_access_point_firmware
  • cisco / business_141acm_firmware
  • cisco / business_142acm_firmware
  • cisco / business_143acm_firmware
  • cisco / business_151axm_firmware / 10.4.2
  • cisco / business_145ac_access_point_firmware

Showing 6 representative product identities from 8 source matches. Confirm exact affected versions with the linked vendor and NVD evidence.

Matched remediation archetype

Authentication bypass and missing authentication

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Check exposure

  • Map every affected endpoint and protocol path, including alternate ports, legacy routes, recovery flows, service accounts, and machine-to-machine access.
  • Confirm which deployments enable the affected authentication mode and whether the interface is reachable from untrusted networks.
  • Review session, token, credential, and proxy trust configuration without attempting account takeover.

Remediate safely

  • Apply the supported fix and centralize fail-closed authentication before protected request handling.
  • Remove default or embedded credentials, rotate affected secrets and sessions, and bind authentication decisions to the intended audience and channel.
  • Add negative tests for alternate routes, malformed or absent credentials, recovery flows, and proxy-derived identity.

Authoritative sources

Complete CVE record and remediation plan

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