EUVD-2026-62719
GHSA-qfxr-9rrq-8wrc
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Network-reachable DoS with no authentication, complexity, or interaction required; impact is availability-only with no scope change to other systems.
Primary rating from Vendor (ibm).
CVSS VectorNVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Lifecycle Timeline
2DescriptionNVD
IBM AIX 7.2, and 7.3 and IBM PowerVM VIOS 4.1 could allow a remote attacker to cause a denial of service due to uncontrolled resource consumption.
AnalysisAI
Denial of service in IBM AIX 7.2 and 7.3 and PowerVM VIOS 4.1 allows unauthenticated remote attackers to exhaust system resources and render affected systems unavailable by sending crafted network input that triggers uncontrolled resource consumption (CWE-400). The CVSS 3.1 vector of AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H confirms low-complexity, unauthenticated remote exploitability with a high availability impact. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | No special configuration or feature enablement is required - the CVSS vector AV:N/AC:L/PR:N/UI:N/S:U indicates remote unauthenticated exploitation against default configurations of IBM AIX 7.2/7.3 and PowerVM VIOS 4.1 reachable over a network. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 3.1 score of 7.5 (High) is driven by the combination of network reachability (AV:N), low attack complexity (AC:L), no privilege requirement (PR:N), and no user interaction (UI:N) - all of which maximize exploitability. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An unauthenticated attacker with network access to an IBM AIX or PowerVM VIOS management interface sends a crafted series of network requests that trigger uncontrolled resource consumption, progressively exhausting CPU, memory, or connection table capacity. On a PowerVM VIOS deployment, this renders the I/O server unresponsive, cutting off storage and network I/O for all dependent LPARs simultaneously. … |
| Remediation | A vendor-released patch is available from IBM; consult the advisory at https://www.ibm.com/support/pages/node/7283858 for the specific fix package (APARs/PTFs) applicable to AIX 7.2, 7.3, and PowerVM VIOS 4.1. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, identify all systems running IBM AIX 7.2, 7.3, or PowerVM VIOS 4.1 and assess their network exposure; prioritize internet-facing and customer-connected systems. …
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Same weakness CWE-400 – Uncontrolled Resource Consumption
View allSame technique Denial Of Service
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External POC / Exploit Code
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