Security readout for executives and security teams
This flaw can let a highly privileged authenticated remote user overload affected Cisco Expressway or TelePresence VCS systems, driving CPU to 100% and causing a denial of service. The business impact is loss of video communications availability until manual reboot. Sources do not show active exploitation. Exposure is most likely where Cisco Expressway Series or Cisco TelePresence VCS remains below X12.5.1 and XML API access is reachable by authenticated high-privilege users. Internet or broad internal management-plane exposure raises operational risk. Prioritize remediation during the next planned maintenance window, sooner for externally reachable or business-critical video infrastructure. The vulnerability requires high privileges, which lowers likelihood, but successful exploitation can interrupt communications until manual reboot. Mitigation focus: Upgrade affected systems to X12.5.1 or a vendor-supported fixed release.; Review the Cisco advisory for platform-specific fixed software guidance.; Restrict XML API and management access to trusted administrators and networks..
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-2019-1720 mapping review
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Open ATT&CK lookup- Severity
- Medium
- CVSS
- 6.8 (3.0)
- Known Exploited
- No
- Published
Vector: CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H
CNA and ADP enrichment extracted from CVE v5
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CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H2.34Primary CVE scoreVulnerability scoring details
Base CVSS 3.0 score
6.8MediumVector: CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H
Source materials
- CVE List V5 sourceCVE List V5
- 20190417 Cisco Expressway Series and Cisco TelePresence Video Communication Server Denial of Service VulnerabilityCVE reference · vendor-advisory, x_refsource_CISCO
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Improper Input Validation
Improper Input Validation represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.