CVE intelligence and bounded remediation

CVE-2019-9935 — Various Lexmark products have Incorrect Access Control (issue 2 of 2)

Medium CVSS 5.3

Various Lexmark products have Incorrect Access Control (issue 2 of 2).

Severity
Medium
CVSS
5.3 (3.0)
Published
2019-08-28
CISA KEV
Not currently listed
Ecosystem
operating-system
Weaknesses
CWE-306

Affected products

  • lexmark / cs31x_firmware
  • lexmark / cs41x_firmware
  • lexmark / cx310_firmware
  • lexmark / ms310_firmware
  • lexmark / ms312_firmware
  • lexmark / ms317_firmware

Showing 6 representative product identities from 25 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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