CVE intelligence and bounded remediation

CVE-2022-43377 — Schneider-Electric Netbotz 355 Firmware security vulnerability

High CVSS 7.5

A CWE-307: Improper Restriction of Excessive Authentication Attempts vulnerability exists that could cause account takeover when a brute force attack is performed on the account. Affected Products: NetBotz 4 - 355/450/455/550/570 (V4.7.0 and prior)

Severity
High
CVSS
7.5 (3.1)
Published
2023-04-18
CISA KEV
Not currently listed
Ecosystem
operating-system
Weaknesses
CWE-307

Affected products

  • schneider-electric / netbotz_355_firmware
  • schneider-electric / netbotz_450_firmware
  • schneider-electric / netbotz_455_firmware
  • schneider-electric / netbotz_550_firmware
  • schneider-electric / netbotz_570_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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