Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2026-18509— IBM i is Affected By A Prvilege Escalation Vulnerability []

Quick assessment

Affected
IBM i
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

IBM i是美国IBM公司的一款操作系统。 IBM i 7.6版本、7.5版本、7.4版本和7.3版本存在授权问题漏洞，该漏洞源于Navigator for i调试器存在授权问题，可能导致本地经过身份验证的攻击者提升权限，访问或操作敏感数据，或创建具有提升权限的新配置文件。

CVSS 8.2 · High EPSS 0.23% · P13

Possible ATT&CK Techniques 1 AI

T1068 · Exploitation for Privilege Escalation

Affected Version Matrix 4

VendorProduct Version RangeStatus
IBM i 7.6 affected
7.5 affected
7.4 affected
7.3 affected
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-18509

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
IBM i is Affected By A Prvilege Escalation Vulnerability []
Source: CVE Program / CVE List V5
Vulnerability Description
IBM i 7.6, 7.5, 7.4, and 7.3 could allow a local authenticated attacker to gain privilege escalation via the Navigator for i debugger. This could allow the attacker to access or manipulate sensitive data on the system, or create new profiles with elevated privileges on the IBM i system.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
IBM i 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
IBM i是美国IBM公司的一款操作系统。 IBM i 7.6版本、7.5版本、7.4版本和7.3版本存在授权问题漏洞，该漏洞源于Navigator for i调试器存在授权问题，可能导致本地经过身份验证的攻击者提升权限，访问或操作敏感数据，或创建具有提升权限的新配置文件。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
IBM i 7.6 cpe:2.3:a:ibm:i:7.6:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-18509

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-18509

请登录查看更多情报信息。

Vendor Advisories for CVE-2026-18509 (1)

Same Patch Batch · IBM · 2026-08-13 · 74 CVEs total

CVE-2026-17482 9.8 CRITICAL IBM Documentation Offline is vulnerable to information disclosure, session forgery and rem
CVE-2026-14525 9.4 CRITICAL IBM WebSphere Application Server Liberty is affected by an authenication bypass
CVE-2026-19297 9.1 CRITICAL Insufficient Authentication Brute Force Protection on Login Endpoint
CVE-2026-18193 8.9 HIGH IBM i Is Affected By Multiple Vulnerabilities in IBM Java SDK and IBM Java Runtime
CVE-2026-16975 8.8 HIGH IBM i is Affected By A Remote Code Execution Vulnerability []
CVE-2026-17029 8.8 HIGH IBM i is Affected By Multiple Vulnerabilities in Java Secure Sockets Extension
CVE-2026-16674 8.8 HIGH IBM i is Affected By Multiple Vulnerabilities in WebSphere Application Server Liberty
CVE-2026-16987 8.8 HIGH IBM i is Affected By An Improper Validation Vulnerability in PASE []
CVE-2026-17223 8.8 HIGH IBM i is Affected By Multiple Vulnerabilities in Host Servers
CVE-2026-17481 8.8 HIGH IBM Documentation Offline is vulnerable to information disclosure, session forgery and rem
CVE-2026-18101 8.8 HIGH IBM i is Affected By Multiple Vulnerabilities in WebSphere Application Server Liberty
CVE-2026-16722 8.8 HIGH IBM i is Affected By An Unauthorized Privileges Vulnerability in SQL []
CVE-2026-17502 8.6 HIGH IBM i is Affected By Multiple Vulnerabilities in NetServer
CVE-2026-16815 8.6 HIGH IBM i is Affected By Multiple Vulnerabilities in Simple Mail Transfer Protocol
CVE-2026-16967 8.5 HIGH IBM i is Affected By Multiple SQL Vulnerabilities [, ]
CVE-2026-16908 8.5 HIGH IBM i is Affected By Multiple SQL Vulnerabilities [, ]
CVE-2026-18249 8.4 HIGH IBM i Is Affected By Multiple Vulnerabilities in IBM Java SDK and IBM Java Runtime
CVE-2026-17101 8.3 HIGH IBM i is Affected By Multiple Vulnerabilities in Navigator for i
CVE-2026-17220 8.2 HIGH IBM i is Affected By Multiple Vulnerabilities in Host Servers
CVE-2026-17272 8.2 HIGH IBM i is Affected By a Denial of Service in HTTP Server []

Showing top 20 of 74 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: i
Same vendor: IBM
Same weakness: CWE-285

V. Comments for CVE-2026-18509

No comments yet

Leave a comment