Path Traversal in Cisco Webex Meetings
CVE-2020-3440
A vulnerability in Cisco Webex Meetings Desktop App for Windows could allow an unauthenticated, remote attacker to overwrite arbitrary files on an end-user system. The vulnerability is due to improper validation of URL parameters that are sent from a website to the affected application. An attacker could exploit this vulnerability by persuading a user to follow a URL to a website that is designed to submit crafted input to the affected application. A successful exploit could allow the attacker to overwrite arbitrary files on the affected system, possibly corrupting or deleting critical system files.
Vulnerability class: Path Traversal (Directory Traversal)
EPSS: 0.026 (84.4th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N.
Affected products
- Cisco Webex Meetings — versions n/a
- Cisco Webex_meetings
Weakness classification (CWE)
References
- psirt@cisco.com (x_refsource_CISCO, vendor-advisory, Vendor Advisory)
Frequently asked questions
- What is CVE-2020-3440?
- CVE-2020-3440 is a medium-severity vulnerability in Cisco Webex Meetings, classified under Path Traversal. CVSS score: 6.5/10. Published 2020-08-26.
- How severe is CVE-2020-3440?
- Medium severity. CVSS v3 base score is 6.5 out of 10.