Is CVE-2020-3361 actively exploited?

No active exploitation of CVE-2020-3361 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2020-3361 be exploited remotely?

Yes. CVE-2020-3361 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2020-3361?

CVE-2020-3361 has a CVSS score of 9.8 (CRITICAL).

HOME VULNERABILITIESCVE-2020-3361

CRITICAL

CVE-2020-3361

CWE-287Published: June 18, 2020· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

A vulnerability in Cisco Webex Meetings and Cisco Webex Meetings Server could allow an unauthenticated, remote attacker to gain unauthorized access to a vulnerable Webex site. The vulnerability is due to improper handling of authentication tokens by a vulnerable Webex site. An attacker could exploit this vulnerability by sending crafted requests to a vulnerable Cisco Webex Meetings or Cisco Webex Meetings Server site. If successful, the attacker could gain the privileges of another user within the affected Webex site.

NVD Source

Technical Analysis

CVE-2020-3361 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.

From a weakness classification perspective (CWE-287): Authentication bypass vulnerabilities allow attackers to access protected resources without valid credentials.