CVE intelligence and bounded remediation

CVE-2023-49646 — Zoom Meeting Software Development Kit security vulnerability

Medium CVSS 6.5

Improper authentication in some Zoom clients before version 5.16.5 may allow an authenticated user to conduct a denial of service via network access.

Severity
Medium
CVSS
6.5 (3.1)
Published
2023-12-13
CISA KEV
Not currently listed
Ecosystem
software/application
Weaknesses
CWE-347, CWE-287

Affected products

  • zoom / meeting_software_development_kit
  • zoom / video_software_development_kit
  • zoom / virtual_desktop_infrastructure
  • zoom / zoom

Showing 4 representative product identities from 9 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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