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CVE-2026-18151— IBM i is Affected By Multiple Vulnerabilities in Navigator for i and Digital Certificate Manager for i.

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 7.6、7.5、7.4 和 7.3 可能允许已认证的远程攻击者利用 WebSocket 握手过程中存在的竞态条件（race condition）获取敏感信息。

CVSS 4.2 · Medium

Possible ATT&CK Techniques 1 AI

T1041 · Exfiltration Over C2 Channel

Affected Version Matrix 4

VendorProduct Version RangeStatus
IBM i 7.6 affected
7.5 affected
7.4 affected
7.3 affected
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I. Basic Information for CVE-2026-18151

Vulnerability Information
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Vulnerability Title
IBM i is Affected By Multiple Vulnerabilities in Navigator for i and Digital Certificate Manager for i.
Source: CVE Program / CVE List V5
Vulnerability Description
IBM i 7.6, 7.5, 7.4, and 7.3 could allow a remote authenticated attacker to obtain sensitive information due to a race condition during the WebSocket handshake process.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
使用共享资源的并发执行不恰当同步问题(竞争条件)
Source: CVE Program / CVE List V5

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-2026-18151

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III. Intelligence Information for CVE-2026-18151

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Other References for CVE-2026-18151 (1)

Same Patch Batch · IBM · 2026-09-14 · 56 CVEs total

CVE-2026-16338 9.9 CRITICAL DataStage on Cloud Pak for Data has several vulnerabilities due to open source software
CVE-2026-13293 8.8 HIGH IBM MQ Java messaging is vulnerable to remote code execution
CVE-2026-16673 8.8 HIGH DataStage on Cloud Pak for Data has several vulnerabilities due to open source software
CVE-2026-16466 8.8 HIGH DataStage on Cloud Pak for Data has several vulnerabilities due to open source software
CVE-2026-16428 8.8 HIGH DataStage on Cloud Pak for Data has several vulnerabilities due to open source software
CVE-2026-17467 8.2 HIGH Vulnerabilities exists in IBM Cloud Pak for Data System
CVE-2026-16335 8.1 HIGH DataStage on Cloud Pak for Data has several vulnerabilities due to open source software
CVE-2026-17416 7.8 HIGH IBM App Connect Enterprise Toolkit is vulnerable to arbitrary code execution due to multip
CVE-2026-17156 7.8 HIGH IBM App Connect Enterprise Toolkit is vulnerable to arbitrary code execution due to multip
CVE-2026-17133 7.8 HIGH IBM App Connect Enterprise Toolkit is vulnerable to arbitrary code execution due to multip
CVE-2026-16432 7.7 HIGH DataStage on Cloud Pak for Data has several vulnerabilities due to open source software
CVE-2026-15955 7.5 HIGH IBM® Data Server driver for JDBC and SQLJ could allow a remote attacker to perform an arbi
CVE-2026-19290 7.5 HIGH IBM Sterling File Gateway is Vulnerable to Improper Access Control
CVE-2026-13285 7.1 HIGH IBM MQ Managed File Transfer is vulnerable to XML external entity injection
CVE-2026-13107 7.1 HIGH Multiple secuirty vulnerabilies addressed with IBM Business Automation Workflow August 202
CVE-2026-13275 7.1 HIGH IBM MQ Managed File Transfer is vulnerable to XML external entity injection
CVE-2026-13287 7.1 HIGH IBM MQ Managed File Transfer is vulnerable to XML external entity injection
CVE-2026-53708 6.6 MEDIUM ContextForge: DNS TOCTOU race condition causes SSRF protection bypass (`/admin/gateways/te
CVE-2026-15634 6.5 MEDIUM IBM WebSphere Application Server prior to 9.0.5.29 and 8.5.5.31 are affected by multiple v
CVE-2026-15396 6.5 MEDIUM IBM WebSphere Application Server prior to 9.0.5.29 and 8.5.5.31 are affected by multiple v

Showing top 20 of 56 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: i
Same vendor: IBM
Same weakness: CWE-362

V. Comments for CVE-2026-18151

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