Deserialization in Cisco Webex Meetings

CVE-2022-20763

A vulnerability in the login authorization components of Cisco Webex Meetings could allow an authenticated, remote attacker to inject arbitrary Java code. This vulnerability is due to improper deserialization of Java code within login requests. An attacker could exploit this vulnerability by sending malicious login requests to the Cisco Webex Meetings service. A successful exploit could allow the attacker to inject arbitrary Java code and take arbitrary actions within the Cisco Webex Meetings application.

Vulnerability class: Insecure Deserialization

EPSS: 0.009 (54.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2022-20763?
CVE-2022-20763 is a medium-severity vulnerability in Cisco Webex Meetings, classified under Deserialization of Untrusted Data. CVSS score: 5.4/10. Published 2022-04-06.
How severe is CVE-2022-20763?
Medium severity. CVSS v3 base score is 5.4 out of 10.
Is CVE-2022-20763 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.