THREATPORT/VULNERABILITY/CVE-2019-1939
HIGH SEVERITY

CVE-2019-1939

Webex Teams vulnerability

CVSS
8.8
EPSS
4.7%
EPSS pct
91th
Exploited
No known
A vulnerability in the Cisco Webex Teams client for Windows could allow an unauthenticated, remote attacker to execute arbitrary commands on an affected system. This vulnerability is due to improper restrictions on software logging features used by the application on Windows operating systems. An attacker could exploit this vulnerability by convincing a targeted user to visit a website designed to submit malicious input to the affected application. A successful exploit could allow the attacker to cause the application to modify files and execute arbitrary commands on the system with the privileges of the targeted user.
Affected vendor
Cisco
Affected product
Webex Teams
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness type (CWE)
Published
2019-09-05

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, high impact to integrity, high impact to availability.

Its EPSS score of 4.7% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 91% of all scored CVEs.

Check your external exposure to CVE-2019-1939

  • Confirm whether Cisco Webex Teams is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2019-1939.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2019-1939

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2019-1939 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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