CVEvulnerability

CVE-2026-18511

7.8 HIGH Published 2026-08-13 Modified 2026-08-17 Official page ↗
Status
Undergoing Analysis
Published
2026-08-13
Last modified
2026-08-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
7.3 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
CVSS 3.1 ([email protected])
7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weaknesses
CWE-787

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.

Affected configurations

• ibm i 7.3 • ibm i 7.4 • ibm i 7.5 • ibm i 7.6

Related

Weakness · CWE (1)

  • CWE-787 Out-of-bounds Write weakness

References