High severity · published Apr 6, 2022
CVE-2022-20763
Cisco Webex Meetings Java Deserialization Vulnerability
8.8
CVSS
0.9%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.9% · higher than 60% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
CW
Cisco Webex Meetings · Cisco
All versions, or not specified · source: vendor
WM
Webex Meetings Online · Cisco
wbs42.2.1-1 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-20763
CVE.org
https://www.cve.org/CVERecord?id=CVE-2022-20763
Vendor Advisory
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-webex-java-MVX6crH9
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