nvd.nist.gov
https://nvd.nist.gov/vuln/detail/CVE-2026-18511 CVE-2026-18511
HIGH
IBM i is Affected By Multiple Vulnerabilities in Java Secure Sockets Extension
Record summary
CVE-2026-18511 has a selected CVSS score of 7.3 (high).
Description
IBM i 7.6, 7.5, 7.4, and 7.3 could allow a local authenticated attacker to generate a stack-based buffer overflow in the Native IBM i JSSE provider, caused by improper bounds checking during TLS session establishment. A local attacker could overflow a fixed-length buffer and execute arbitrary code on the system or cause the JVM process to crash.
Description source: CVE List
Affected products and versions
1| Product | Source | Version range | Status |
|---|---|---|---|
| CVE List | 7.6 | affected | |
| 7.5 | affected | ||
| 7.4 | affected | ||
| 7.3 | affected |
References
2ibm.comVendor advisorypatch
https://www.ibm.com/support/pages/node/7283285