CVE-2026-19653: CWE-400 Uncontrolled Resource Consumption in IBM AIX
Description
CVE-2026-19653 is a vulnerability in IBM AIX versions 7.2 and 7.3, and IBM PowerVM VIOS 4.1, where improper handling of memory page table configurations can lead to uncontrolled resource consumption. This flaw allows a local attacker to cause a denial of service by exhausting system resources. The vulnerability has a medium severity rating with a CVSS score of 6.5. There is no indication of known exploits in the wild or available patches at this time.
CVSS v3.1
Score 6.5medium
Affected software
IBM
AIX
IBM
PowerVM VIOS
cpe:2.3:a:ibm:vios:4.1:*:*:*:*:*:*:*Run on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
IBM AIX 7.2, 7.3, and IBM PowerVM VIOS 4.1 contain a CWE-400 Uncontrolled Resource Consumption vulnerability due to improper handling of memory page table configurations. A local attacker with low privileges can exploit this flaw to cause a denial of service by exhausting system resources. The CVSS 3.1 base score is 6.5 (AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H), indicating a medium severity impact focused on availability disruption without confidentiality or integrity impact.
Potential Impact
The vulnerability allows a local attacker to cause a denial of service condition by consuming system resources improperly, impacting system availability. There is no impact on confidentiality or integrity reported. No known exploits are currently in the wild.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or patch links are provided at this time. Until a patch is available, limit local access to trusted users and monitor for unusual resource consumption patterns.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- ibm
- Date Reserved
- 2026-08-12T18:09:01.704Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6a85f0f8acd9273b496dcae8
Added to database: 08/19/2026, 18:07:52 UTC
Last enriched: 09/11/2026, 08:03:34 UTC
Last updated: 10/04/2026, 10:02:26 UTC
Views: 54
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.