CVE intelligence and bounded remediation

CVE-2023-32619 — Tp-Link Archer C55 Firmware security vulnerability

High CVSS 8.8

Archer C50 firmware versions prior to 'Archer C50(JP)_V3_230505' and Archer C55 firmware versions prior to 'Archer C55(JP)_V1_230506' use hard-coded credentials to login to the affected device, which may allow a network-adjacent unauthenticated attacker to execute an arbitrary OS command.

Severity
High
CVSS
8.8 (3.1)
Published
2023-09-06
CISA KEV
Not currently listed
Ecosystem
operating-system
Weaknesses
CWE-798

Affected products

  • tp-link / archer_c55_firmware
  • tp-link / archer_c50_v3_firmware

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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