CVE-2026-17076: CWE-770 Allocation of Resources Without Limits or Throttling
IBM i versions 7.3, 7.4, 7.5, and 7.6 contain a vulnerability where improper processing of DRDA and DDM resynchronization requests can lead to resource allocation without limits or throttling. This flaw could allow a remote attacker to cause a denial of service. The vulnerability has a medium severity rating with a CVSS score of 5.3. No official patch or remediation guidance is currently provided by the vendor. There are no known exploits in the wild at this time.
AI Analysis
Technical Summary
CVE-2026-17076 is a resource allocation vulnerability (CWE-770) affecting IBM i versions 7.3 through 7.6. The issue arises from improper handling of Distributed Relational Database Architecture (DRDA) and Distributed Data Management (DDM) resynchronization requests, which can be exploited remotely to cause a denial of service condition by exhausting system resources. The vulnerability does not impact confidentiality or integrity but affects availability. The CVSS 3.1 base score is 5.3 (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L). No vendor advisory or patch information is currently available, and no known active exploitation has been reported.
Potential Impact
A remote attacker can cause a denial of service on affected IBM i systems by exploiting improper resource allocation during DRDA and DDM resynchronization request processing. This impacts system availability but does not affect confidentiality or integrity.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, monitor for unusual resource consumption related to DRDA and DDM services and consider limiting exposure of these services to untrusted networks.
CVE-2026-17076: 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 where improper processing of DRDA and DDM resynchronization requests can lead to resource allocation without limits or throttling. This flaw could allow a remote attacker to cause a denial of service. The vulnerability has a medium severity rating with a CVSS score of 5.3. No official patch or remediation guidance is currently provided by the vendor. There are no known exploits in the wild at this time.
CVSS v3.1
Score 5.3medium
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-2026-17076 is a resource allocation vulnerability (CWE-770) affecting IBM i versions 7.3 through 7.6. The issue arises from improper handling of Distributed Relational Database Architecture (DRDA) and Distributed Data Management (DDM) resynchronization requests, which can be exploited remotely to cause a denial of service condition by exhausting system resources. The vulnerability does not impact confidentiality or integrity but affects availability. The CVSS 3.1 base score is 5.3 (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L). No vendor advisory or patch information is currently available, and no known active exploitation has been reported.
Potential Impact
A remote attacker can cause a denial of service on affected IBM i systems by exploiting improper resource allocation during DRDA and DDM resynchronization request processing. This impacts system availability but does not affect confidentiality or integrity.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, monitor for unusual resource consumption related to DRDA and DDM services and consider limiting exposure of these services to untrusted networks.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- ibm
- Date Reserved
- 2026-07-24T14:21:37.539Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a7e2c18bf8831d539c6f4bb
Added to database: 08/13/2026, 20:42:00 UTC
Last enriched: 08/13/2026, 20:59:03 UTC
Last updated: 08/13/2026, 21:41:08 UTC
Views: 3
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
External Links
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.