CVE intelligence and bounded remediation

CVE-2020-5349 — Dell EMC Networking S4100 and S5200 Series Switches manufactured prior to February 2020 contain a hardcoded credential vulnerability

Critical CVSS 9.8

Dell EMC Networking S4100 and S5200 Series Switches manufactured prior to February 2020 contain a hardcoded credential vulnerability. A remote unauthenticated malicious user could exploit this vulnerability and gain administrative privileges.

Severity
Critical
CVSS
9.8 (3.1)
Published
2021-07-19
CISA KEV
Not currently listed
Ecosystem
hardware/firmware
Weaknesses
CWE-798

Affected products

  • dell / emc_powerswitch_s4112f-on
  • dell / emc_powerswitch_s4112t-on
  • dell / emc_powerswitch_s4128f-on
  • dell / emc_powerswitch_s4128t-on
  • dell / emc_powerswitch_s4148f-on
  • dell / emc_powerswitch_s4148fe-on

Showing 6 representative product identities from 13 source matches. Confirm exact affected versions with the linked vendor and NVD evidence.

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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