CVE-2026-18858: CWE-267 Privilege Defined With Unsafe Actions
Description
CVE-2026-18858 is a low-severity vulnerability affecting IBM i versions 7.5 and 7.6. It allows a local authenticated attacker to obtain information from a privileged file when using SSH. The vulnerability is related to improper privilege definitions involving unsafe actions (CWE-267). There is no indication of impact on integrity or availability, and no known exploits in the wild have been reported. Patch status is not confirmed from the provided data.
CVSS v3.1
Score 3.3low
Affected software
IBM
cpe:2.3:a:ibm:i:7.6:*:*:*:*:*:*:*cpe:2.3:a:ibm:i:7.6.0:*:*:*:*:*:*:*cpe:2.3:a:ibm:i:7.5:*:*:*:*:*:*:*cpe:2.3:a:ibm:i:7.5.0:*:*:*:*:*:*:*Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability in IBM i 7.5 and 7.6 involves a privilege definition weakness (CWE-267) that could allow a local authenticated attacker to access information from a privileged file via SSH. The CVSS 3.1 base score is 3.3, reflecting low impact with confidentiality loss only. The attack vector is local, requiring low complexity and privileges, with no user interaction needed. There is no evidence of integrity or availability impact. No patch or remediation information is provided in the source data.
Potential Impact
An attacker with local authenticated access could read information from a privileged file, potentially exposing sensitive data. The impact is limited to confidentiality with no effect on integrity or availability. The overall severity is low based on the CVSS score and described impact.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no official fix or workaround is provided in the available data, monitor IBM's advisories for updates. Limit local authenticated access to trusted users as a precaution.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- ibm
- Date Reserved
- 2026-08-04T16:06:12.417Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6a9af170acd9273b49dd5946
Added to database: 09/04/2026, 16:27:28 UTC
Last enriched: 09/15/2026, 00:55:19 UTC
Last updated: 10/17/2026, 18:48:17 UTC
Views: 72
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