CVE intelligence and bounded remediation

CVE-2023-30762 — Improper authentication vulnerability exists in KB-AHR series and KB-IRIP series

Critical CVSS 9.8

Improper authentication vulnerability exists in KB-AHR series and KB-IRIP series. If this vulnerability is exploited, an arbitrary OS command may be executed on the product or the device settings may be altered. Affected products and versions are as follows: KB-AHR04D versions prior to 91110.1.101106.78, KB-AHR08D versions prior to 91210.1.101106.78, KB-AHR16D versions prior to 91310.1.101106.78, KB-IRIP04A versions prior to 95110.1.100290.78A, KB-IRIP08A versions prior to 95210.1.100290.78A, and KB-IRIP16A versions prior to 95310.1.100290.78A.

Severity
Critical
CVSS
9.8 (3.1)
Published
2023-06-13
CISA KEV
Not currently listed
Ecosystem
operating-system
Weaknesses
CWE-287, CWE-306

Affected products

  • kbdevice / kb-ahr04d_firmware
  • kbdevice / kb-ahr08d_firmware
  • kbdevice / kb-ahr16d_firmware
  • kbdevice / kb-irip04a_firmware
  • kbdevice / kb-irip08a_firmware
  • kbdevice / kb-irip16a_firmware

Matched remediation archetype

Authentication bypass and missing authentication

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

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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