Origin validation error in IBM CICS TX Advanced

Published: 2023-09-27
Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2019-11777
Exploitation vector Network
Public exploit N/A
Vulnerable software
IBM CICS TX Advanced
Universal components / Libraries / Software for developers

Vendor IBM Corporation

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Origin validation error

EUVDB-ID: #VU78253

Risk: Medium


CVE-ID: CVE-2019-11777

CWE-ID: CWE-346 - Origin Validation Error

Exploit availability: No


The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to when connecting to an MQTT server using TLS and setting a host name verifier, the result of that verification is not checked. A remote attacker can gain unauthorized access to sensitive information on the system.


Install update from vendor's website.

Vulnerable software versions

IBM CICS TX Advanced: before ifix3

CPE2.3 External links


Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?