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CVE-2026-17207— IBM i is Affected By Denial of Service Vulnerabilities in NFS [, ]

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公司的一款适用于IBM power服务器的操作系统。 IBM i 7.6版本、7.5版本、7.4版本和7.3版本存在缓冲区错误漏洞，该漏洞源于缓冲区溢出，可能导致远程攻击者造成拒绝服务并破坏完整性。

CVSS 6.5 · Medium EPSS 0.34% · P26

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service

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-2026-17207

Vulnerability Information
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Vulnerability Title
IBM i is Affected By Denial of Service Vulnerabilities in NFS [, ]
Source: CVE Program / CVE List V5
Vulnerability Description
IBM i 7.6, 7.5, 7.4, and 7.3 could allow a remote attacker to cause a denial of service and compromise integrity due to a buffer overflow.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
跨界内存写
Source: CVE Program / CVE List V5
Vulnerability Title
IBM i 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
IBM i是美国IBM公司的一款适用于IBM power服务器的操作系统。 IBM i 7.6版本、7.5版本、7.4版本和7.3版本存在缓冲区错误漏洞，该漏洞源于缓冲区溢出，可能导致远程攻击者造成拒绝服务并破坏完整性。
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-2026-17207

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III. Intelligence Information for CVE-2026-17207

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Vendor Advisories for CVE-2026-17207 (1)

Same Patch Batch · IBM · 2026-09-04 · 64 CVEs total

CVE-2026-18658 9.8 CRITICAL IBM Operational Decision Manager for Aug 2026 - Multiple CVEs addressed
CVE-2026-19274 9.6 CRITICAL IBM Instana Observability is affected by multiple vulnerabilities within Instana Agent con
CVE-2026-18486 8.8 HIGH IBM ContextForge MCP Gateway is affected by credential disclosure and privilege escalation
CVE-2026-19298 8.8 HIGH Langflow is vulnerable to remote code execution due to authorization policy bypass in the
CVE-2026-19305 8.6 HIGH Langflow is vulnerable to Server-Side Request Forgery due to missing or bypassable URL val
CVE-2026-77822 8.2 HIGH IBM ContextForge MCP Gateway is affected by server-side request forgery (DNS rebinding) vi
CVE-2026-19303 8.1 HIGH Langflow is vulnerable to arbitrary file write and arbitrary file deletion due to unvalida
CVE-2026-18221 8.1 HIGH IBM i is Affected By Improper Authorization and Authentication Vulnerabilities in DDM / DR
CVE-2026-18175 8.1 HIGH IBM i is Affected By Improper Authorization and Authentication Vulnerabilities in DDM / DR
CVE-2026-18905 7.7 HIGH IBM ContextForge MCP Gateway is affected by server-side request forgery via DNS TOCTOU at
CVE-2026-19283 7.7 HIGH IBM Instana Observability is affected by multiple vulnerabilities within Instana Agent con
CVE-2026-81832 7.7 HIGH IBM App Connect Enterprise and IBM Integration Bus for z/OS Adapter nodes are vulnerable t
CVE-2026-19304 7.7 HIGH Langflow is vulnerable to Server-Side Request Forgery due to missing or bypassable URL val
CVE-2026-19306 7.7 HIGH Langflow is vulnerable to arbitrary local file read due to path traversal in ChatInput, bu
CVE-2026-19300 7.5 HIGH Langflow is vulnerable to information disclosure due to cross-user MCP tool cache collisio
CVE-2026-18489 7.4 HIGH IBM ContextForge Translate is affected by cross-client credential context confusion
CVE-2026-5522 6.7 MEDIUM QRadar contains hard-coded credentials
CVE-2026-17622 6.5 MEDIUM Langflow OSS is affected by arbitrary file read due to path traversal vulnerabilities in f
CVE-2026-18887 6.5 MEDIUM IBM i is Affected By Sensitive Information Exposure Vulnerability in PASE []
CVE-2026-17057 6.5 MEDIUM IBM i is Affected By Denial of Service Vulnerabilities in NFS [, ]

Showing top 20 of 64 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: i
Same vendor: IBM
Same weakness: CWE-787

V. Comments for CVE-2026-17207

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