CVE-2026-16836: CWE-400 Uncontrolled Resource Consumption in IBM AIX
CVE-2026-16836 is a high-severity vulnerability affecting IBM AIX versions 7.2 and 7.3, as well as IBM PowerVM VIOS 4.1. It involves uncontrolled resource consumption that could allow a remote attacker to cause a denial of service (DoS) condition. The vulnerability does not impact confidentiality or integrity but results in availability disruption. No official patch or remediation guidance is currently available from the vendor. There are no known exploits in the wild at this time.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-16836) in IBM AIX 7.2, 7.3, and IBM PowerVM VIOS 4.1 is classified as CWE-400 (Uncontrolled Resource Consumption). It allows a remote attacker to cause a denial of service by exhausting system resources, leading to service unavailability. The CVSS v3.1 base score is 7.5, reflecting network attack vector, low attack complexity, no privileges or user interaction required, and impact limited to availability. The vendor has published the vulnerability but has not yet provided an official fix or remediation level.
Potential Impact
The impact is a denial of service condition caused by uncontrolled resource consumption, which can disrupt availability of affected IBM AIX systems and IBM PowerVM VIOS 4.1 environments. There is no impact on confidentiality or integrity. This could affect system stability and availability for users relying on these versions.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, monitor for any updates from IBM. No vendor-provided mitigation or workaround is currently documented.
CVE-2026-16836: CWE-400 Uncontrolled Resource Consumption in IBM AIX
Description
CVE-2026-16836 is a high-severity vulnerability affecting IBM AIX versions 7.2 and 7.3, as well as IBM PowerVM VIOS 4.1. It involves uncontrolled resource consumption that could allow a remote attacker to cause a denial of service (DoS) condition. The vulnerability does not impact confidentiality or integrity but results in availability disruption. No official patch or remediation guidance is currently available from the vendor. There are no known exploits in the wild at this time.
CVSS v3.1
Score 7.5high
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-2026-16836) in IBM AIX 7.2, 7.3, and IBM PowerVM VIOS 4.1 is classified as CWE-400 (Uncontrolled Resource Consumption). It allows a remote attacker to cause a denial of service by exhausting system resources, leading to service unavailability. The CVSS v3.1 base score is 7.5, reflecting network attack vector, low attack complexity, no privileges or user interaction required, and impact limited to availability. The vendor has published the vulnerability but has not yet provided an official fix or remediation level.
Potential Impact
The impact is a denial of service condition caused by uncontrolled resource consumption, which can disrupt availability of affected IBM AIX systems and IBM PowerVM VIOS 4.1 environments. There is no impact on confidentiality or integrity. This could affect system stability and availability for users relying on these versions.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, monitor for any updates from IBM. No vendor-provided mitigation or workaround is currently documented.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- ibm
- Date Reserved
- 2026-07-24T02:51:41.802Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a86098facd9273b498b4bf1
Added to database: 08/19/2026, 19:52:47 UTC
Last enriched: 08/19/2026, 20:23:54 UTC
Last updated: 08/19/2026, 23:56:36 UTC
Views: 4
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