CVE-2020-27131

Multiple vulnerabilities in the Java deserialization function that is used by Cisco Security Manager could allow an unauthenticated, remote attacker to execute arbitrary commands on an affected device. These vulnerabilities are due to insecure deserialization of user-supplied content by the affected software. An attacker could exploit these vulnerabilities by sending a malicious serialized Java object to a specific listener on an affected system. A successful exploit could allow the attacker to execute arbitrary commands on the device with the privileges of NT AUTHORITY\SYSTEM on the Windows target host. Cisco has not released software updates that address these vulnerabilities.

• CWE-20
• CWE-502

• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-csm-java-rce-mWJEedcDVendor Advisory
• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-csm-java-rce-mWJEedcDVendor Advisory

Published

Nov 17, 2020

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
• PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
• AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.

• CVE-2020-27126A vulnerability in an API of Cisco Webex Meetings could allo…6.1
• CVE-2020-27127Multiple vulnerabilities in Cisco Jabber for Windows, Jabber…9.9
• CVE-2020-27128A vulnerability in the application data endpoints of Cisco S…6.5
• CVE-2020-27129A vulnerability in the remote management feature of Cisco SD…6.7
• CVE-2020-2713Vulnerability in the Oracle Banking Payments product of Orac…7.1
• CVE-2020-27130A vulnerability in Cisco Security Manager could allow an una…9.1
• CVE-2020-27132Multiple vulnerabilities in Cisco Jabber for Windows, Jabber…9.9
• CVE-2020-27133Multiple vulnerabilities in Cisco Jabber for Windows, Jabber…9.9
• CVE-2020-27134Multiple vulnerabilities in Cisco Jabber for Windows, Jabber…9.9
• CVE-2020-2714Vulnerability in the Oracle Banking Payments product of Orac…4.3
• CVE-2020-27146The Core component of TIBCO Software Inc.'s TIBCO iProcess W…8.8
• CVE-2020-27147The REST API component of TIBCO Software Inc.'s TIBCO Partne…6.5