Security readout for executives and security teams
This flaw can let an unauthenticated remote attacker temporarily disrupt Cisco collaboration messaging services. The reported impact is service outage, not data theft. Business urgency depends on whether affected Cisco CUCM IM&P, VCS, or Expressway systems expose TCP port 7400 to untrusted networks. Exposure is most likely in organizations running Cisco Unified Communications Manager IM & Presence Service, Cisco TelePresence VCS, or Cisco Expressway where TCP port 7400 is reachable by untrusted networks. The source bundle does not specify affected versions. Treat this as a communications availability risk. It is not presented as data compromise, but remote unauthenticated outage potential can disrupt messaging users. Prioritize exposed systems and systems supporting critical operations. Mitigation focus: Review Cisco advisory for affected and fixed releases.; Restrict TCP port 7400 to trusted management or collaboration networks.; Prioritize remediation for internet-exposed or partner-reachable systems..
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
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Open ATT&CK lookupCVE-2018-0409 mapping review
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Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
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CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- 20180815 Cisco Unified Communications Manager IM & Presence Service Denial of Service VulnerabilityCVE reference · vendor-advisory, x_refsource_CISCO
Products and packages named in the record
CWE details
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Improper Input Validation
Improper Input Validation represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.