CVE-2026-17271: CWE-770 Allocation of Resources Without Limits or Throttling
IBM i versions 7.3, 7.4, 7.5, and 7.6 contain a vulnerability (CVE-2026-17271) where improper validation of input size could allow a remote attacker to cause a denial of service by allocating resources without limits or throttling.
AI Analysis
Technical Summary
CVE-2026-17271 is a vulnerability in IBM i versions 7.3 through 7.6 involving CWE-770 (Allocation of Resources Without Limits or Throttling). The flaw arises from improper validation of input size, which can be exploited remotely to cause a denial of service condition by exhausting system resources.
Potential Impact
An unauthenticated remote attacker can trigger a denial of service on affected IBM i systems by sending specially crafted input that causes excessive resource allocation. This results in service disruption but does not impact confidentiality or integrity.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or temporary workaround has been documented at this time.
CVE-2026-17271: CWE-770 Allocation of Resources Without Limits or Throttling
Description
IBM i versions 7.3, 7.4, 7.5, and 7.6 contain a vulnerability (CVE-2026-17271) where improper validation of input size could allow a remote attacker to cause a denial of service by allocating resources without limits or throttling.
CVSS v3.1
Score 7.5high
Affected software
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-2026-17271 is a vulnerability in IBM i versions 7.3 through 7.6 involving CWE-770 (Allocation of Resources Without Limits or Throttling). The flaw arises from improper validation of input size, which can be exploited remotely to cause a denial of service condition by exhausting system resources.
Potential Impact
An unauthenticated remote attacker can trigger a denial of service on affected IBM i systems by sending specially crafted input that causes excessive resource allocation. This results in service disruption but does not impact confidentiality or integrity.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or temporary workaround has been documented at this time.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- ibm
- Date Reserved
- 2026-07-24T23:23:43.642Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a7cb3e8bf8831d539ed55c6
Added to database: 08/12/2026, 17:56:56 UTC
Last enriched: 08/12/2026, 18:11:38 UTC
Last updated: 08/12/2026, 18:25:31 UTC
Views: 4
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