CVE-2026-17057: CWE-306 Missing Authentication for Critical Function
Description
IBM i versions 7.3, 7.4, 7.5, and 7.6 contain a vulnerability due to missing authentication for critical functions. This flaw could allow a remote attacker to cause denial of service and impact data integrity. The vulnerability has a CVSS score of 6.5, indicating a medium severity level.
CVSS v3.1
Score 6.5medium
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:*:*:*:*:*:*:*cpe:2.3:a:ibm:i:7.4:*:*:*:*:*:*:*cpe:2.3:a:ibm:i:7.4.0:*:*:*:*:*:*:*Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-17057 is a vulnerability in IBM i operating system versions 7.3, 7.4, 7.5, and 7.6 where critical functions lack proper authentication controls. This missing authentication can be exploited remotely without privileges or user interaction, potentially leading to denial of service conditions and affecting data integrity. The vulnerability is classified under CWE-306 (Missing Authentication for Critical Function). No known exploits are reported in the wild, and no patch or remediation details are provided in the available data.
Potential Impact
The vulnerability allows remote attackers to cause denial of service and compromise data integrity by exploiting missing authentication on critical functions. Confidentiality is not impacted according to the CVSS vector. The medium severity score reflects the potential for disruption and data integrity issues but not confidentiality loss.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no official fix or patch links are provided, users should monitor IBM security advisories for updates. Until a fix is available, restricting network access to IBM i systems and applying compensating controls to limit exposure to untrusted networks may reduce risk.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- ibm
- Date Reserved
- 2026-07-24T13:36:12.771Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6a9af760acd9273b49e7788d
Added to database: 09/04/2026, 16:52:48 UTC
Last enriched: 09/15/2026, 00:53:58 UTC
Last updated: 10/18/2026, 18:48:18 UTC
Views: 80
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