CVE-2026-17470: CWE-787 Out-of-bounds Write
Description
IBM i 7.6, 7.5, 7.4, and 7.3 could allow a remote attacker to cause a denial of service due to a buffer overflow.
CVSS v3.1
Score 5.3medium
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
This vulnerability (CVE-2026-17470) affects IBM i operating system versions 7.3 through 7.6. It is classified as a CWE-787 out-of-bounds write, which can lead to a buffer overflow condition. The flaw allows a remote attacker to cause a denial of service by triggering this buffer overflow. The CVSS 3.1 base score is 5.3 (medium), reflecting network attack vector, no privileges required, no user interaction, and impact limited to availability loss. There is no indication of known exploits in the wild or vendor-provided patches or mitigations at this time.
Potential Impact
The impact is limited to denial of service (availability) on affected IBM i systems. There is no reported impact on confidentiality or integrity. A remote attacker can cause the system to crash or become unavailable due to the buffer overflow.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or workaround has been published. Until a patch is available, monitor IBM security advisories for updates.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- ibm
- Date Reserved
- 2026-07-25T20:52:27.765Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6a9af764acd9273b49e77912
Added to database: 09/04/2026, 16:52:52 UTC
Last enriched: 09/07/2026, 12:04:52 UTC
Last updated: 10/17/2026, 18:48:17 UTC
Views: 69
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