THREATPORT/VULNERABILITY/CVE-2019-13450
MEDIUM SEVERITY

CVE-2019-13450

Ringcentral vulnerability

CVSS
6.5
EPSS
3.5%
EPSS pct
88th
Exploited
No known
In the Zoom Client through 4.4.4 and RingCentral 7.0.136380.0312 on macOS, remote attackers can force a user to join a video call with the video camera active. This occurs because any web site can interact with the Zoom web server on localhost port 19421 or 19424. NOTE: a machine remains vulnerable if the Zoom Client was installed in the past and then uninstalled. Blocking exploitation requires additional steps, such as the ZDisableVideo preference and/or killing the web server, deleting the ~/.zoomus directory, and creating a ~/.zoomus plain file.
Affected vendor
Ringcentral
Affected product
Ringcentral
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Weakness type (CWE)
Published
2019-07-09

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no privileges, user interaction. Successful exploitation leads to high impact to confidentiality.

Its EPSS score of 3.5% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 88% of all scored CVEs.

Check your external exposure to CVE-2019-13450

  • Confirm whether Ringcentral Ringcentral is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2019-13450.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2019-13450

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2019-13450 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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