CVE-2026-18511

HighCVSS 7.8/10Last modified Aug 17, 2026

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.

Metrics

CVSS 3.1 7.8/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-787

Affected software

Source: the vendor's advisory (CNA). NVD analysis pending.

No affected versions have been published.

Timeline

Published
Aug 13, 2026
Last modified
Aug 17, 2026
NVD status
Undergoing Analysis

Related CVEs from 2026

CVE-2026-185126.4The TranslatePress – Translate Multilingual sites with AI Translation plugin for WordPress is vulnerable to Stored Cross-Site Scripting via CVE-2026-185137.2IBM Maximo Application Suite - Location Service for Esri Component 9.2, 9.1, and 9.0 is vulnerable to improper access control due to a schemCVE-2026-185154.3IBM i 7.6, 7.5, 7.4, and 7.3 could allow a remote authenticated attacker to place files into the file system with Navigator for i when they CVE-2026-185169.6An output escaping vulnerability in the Audit Logs component of Crafty Controller allows a remote, unauthenticated attacker to perform storeCVE-2026-185177.7IBM Maximo Application Suite - Location Service for Esri Component 9.2, 9.1, and 9.0 IBM Maximo Application Suite — Location Service for EsrCVE-2026-18526.1The Product Pricing Table by WooBeWoo plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including,CVE-2026-185267.4HumHub Community Edition 1.18.4 and 1.18.4-pl1 contain a stored Cross-Site Scripting (XSS) vulnerability in the oEmbed confirmation renderinCVE-2026-185279.9IBM Administration Runtime Expert for i 1R1M0 IBM Application Runtime Expert (ARE) for i could allow a remote attacker to gain elevated privCVE-2026-185298.7IBM Maximo Application Suite - Location Service for Esri Component 9.2, 9.1, and 9.0 is vulnerable to command injection due to improper saniCVE-2026-18536.4The BuddyHolis ListSearch plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'listsearch' shortcode in all vCVE-2026-185315.3IBM Maximo Application Suite 9.2, 9.1, and 9.0 could allow a remote attacker to tamper with session data due to the use of a weak HMAC sessiCVE-2026-185336.5IBM Maximo Application Suite - Location Service for Esri Component 9.2, 9.1, and 9.0 is vulnerable to improper input validation due to an un