CVE-2026-18822: CWE-400 Uncontrolled Resource Consumption in IBM AIX
CVE-2026-18822 is a medium severity vulnerability in IBM AIX 7.2, 7.3, and IBM PowerVM VIOS 4.1 that allows a local attacker to cause a denial of service by triggering uncontrolled resource consumption when parsing directory records. The vulnerability does not impact confidentiality or integrity but affects availability. No official patch or remediation guidance has been provided yet.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-18822) affects IBM AIX versions 7.2 and 7.3, as well as IBM PowerVM VIOS 4.1. It involves uncontrolled resource consumption (CWE-400) during the parsing of directory records, which can be exploited by a local attacker to cause a denial of service condition. The CVSS 3.1 base score is 4.4, reflecting a medium severity with local attack vector, low complexity, high privileges required, no user interaction, and impact limited to availability.
Potential Impact
A local attacker with high privileges can exploit this vulnerability to cause a denial of service by exhausting system resources during directory record parsing. There is no impact on confidentiality or integrity.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or temporary mitigation has been published by IBM at this time.
CVE-2026-18822: CWE-400 Uncontrolled Resource Consumption in IBM AIX
Description
CVE-2026-18822 is a medium severity vulnerability in IBM AIX 7.2, 7.3, and IBM PowerVM VIOS 4.1 that allows a local attacker to cause a denial of service by triggering uncontrolled resource consumption when parsing directory records. The vulnerability does not impact confidentiality or integrity but affects availability. No official patch or remediation guidance has been provided yet.
CVSS v3.1
Score 4.4medium
Affected software
cpe:2.3:a:ibm:aix:7.2:*:*:*:*:*:*:*cpe:2.3:a:ibm:aix:7.2.0:*:*:*:*:*:*:*cpe:2.3:a:ibm:aix:7.3:*:*:*:*:*:*:*cpe:2.3:a:ibm:aix:7.3.0:*:*:*:*:*:*:*cpe:2.3:a:ibm:powervm_vios:4.1:*:*:*:*:*:*:*cpe:2.3:a:ibm:powervm_vios:4.1.0:*:*:*:*:*:*:*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
This vulnerability (CVE-2026-18822) affects IBM AIX versions 7.2 and 7.3, as well as IBM PowerVM VIOS 4.1. It involves uncontrolled resource consumption (CWE-400) during the parsing of directory records, which can be exploited by a local attacker to cause a denial of service condition. The CVSS 3.1 base score is 4.4, reflecting a medium severity with local attack vector, low complexity, high privileges required, no user interaction, and impact limited to availability.
Potential Impact
A local attacker with high privileges can exploit this vulnerability to cause a denial of service by exhausting system resources during directory record parsing. There is no impact on confidentiality or integrity.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or temporary mitigation has been published by IBM at this time.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- ibm
- Date Reserved
- 2026-08-04T13:27:33.763Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a877ac7acd9273b493025ef
Added to database: 08/20/2026, 22:08:07 UTC
Last enriched: 08/20/2026, 22:22:56 UTC
Last updated: 08/20/2026, 23:18:18 UTC
Views: 3
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