Severity by source
AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N
Network-reachable path traversal requires high-privilege authentication; only limited file integrity impact applies, with no confidentiality or availability consequences.
Primary rating from Vendor (ibm).
CVSS VectorVendor: ibm
Lifecycle Timeline
1DescriptionCVE.org
IBM i 7.6, 7.5, 7.4, and 7.3 could allow a remote authenticated attacker to perform file manipulation due to path traversal.
AnalysisAI
Path traversal in IBM i 7.3 through 7.6 enables remote attackers holding high-privilege credentials to manipulate files outside intended directory boundaries. The CVSS score of 2.7 (Low) accurately reflects the constrained impact - exploitation is limited to authenticated users with high privileges (PR:H), and the resulting damage is restricted to limited file integrity modification with no confidentiality or availability consequences. No public exploit code has been identified at time of analysis, and IBM has released a vendor patch.
Technical ContextAI
IBM i (formerly AS/400 and iSeries) is IBM's integrated operating system for Power Systems hardware, widely used in financial services, manufacturing, and retail for legacy enterprise workloads. CWE-22 (Improper Limitation of a Pathname to a Restricted Directory - Path Traversal) identifies the root cause: insufficient sanitization of file path inputs, allowing traversal sequences (e.g., '../') to escape the intended directory context and reference arbitrary file system locations. The CPE string cpe:2.3:a:ibm:i:*:*:*:*:*:*:*:* covers all sub-versions within the affected major releases 7.3, 7.4, 7.5, and 7.6. The CVSS vector (AV:N/AC:L/PR:H) confirms the vulnerability is reachable over the network by a privileged authenticated session, without requiring any special environmental configuration beyond having high-privilege access.
RemediationAI
IBM has released a patch addressing CVE-2026-17071, available through the vendor advisory at https://www.ibm.com/support/pages/node/7283569. Administrators should consult that advisory to identify and apply the appropriate PTF for their specific IBM i release (7.3, 7.4, 7.5, or 7.6). The exact patched PTF identifiers are not specified in currently available data and must be confirmed via the IBM support page. As a compensating control pending patch application, restrict high-privilege account usage on IBM i to only the accounts and personnel that strictly require it, and enable auditing of file system operations (QAUDJRN object auditing) to detect anomalous path-based file access by privileged users. Note that restricting file operation commands via IBM i object authority may partially limit exploitability but does not eliminate the underlying path traversal weakness.
Same weakness CWE-22 – Path Traversal
View allSame technique Path Traversal
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External POC / Exploit Code
Leaving vuln.today
EUVD-2026-58392
GHSA-gp26-5xf9-qgh8