IBM Cics Transaction Gateway vulnerabilities

4 CVEs affecting IBM Cics Transaction Gateway, 0 known to be exploited (CISA KEV), with EPSS scores. Latest: CVE-2026-0977, published 2026-03-16.

Highest priority

Known exploited (CISA KEV) first, then by EPSS exploit probability.

CVE-2023-50310, published 2024-10-23. High severity, CVSS 7.5. EPSS: 0.4% chance of exploitation in the next 30 days. IBM CICS Transaction Gateway for Multiplatforms 9.2 and 9.3 transmits or stores authentication credentials, but it uses an insecure method that is susceptible to unauthorized interception and/or…
CVE-2023-50311, published 2024-03-31. Low severity, CVSS 3.1. EPSS: 0.3% chance of exploitation in the next 30 days. IBM CICS Transaction Gateway for Multiplatforms 9.2 and 9.3 could disclose sensitive path information to an attacker that could reveal through debugging or error messages.
CVE-2023-47140, published 2024-01-08. High severity, CVSS 8.1. EPSS: 0.2% chance of exploitation in the next 30 days. IBM CICS Transaction Gateway 9.3 could allow a user to transfer or view files due to improper access controls.
CVE-2026-0977, published 2026-03-16. High severity, CVSS 7.1. EPSS: 0.2% chance of exploitation in the next 30 days. IBM CICS Transaction Gateway for Multiplatforms 9.3 and 10.1 could allow a user to transfer or view files due to improper access controls.