EUVD-2026-58395
GHSA-hh5j-34r6-5293
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Network-reachable, no authentication, low complexity DoS; availability impact bounded to partial with no confidentiality or integrity exposure.
Primary rating from Vendor (ibm).
CVSS VectorVendor: ibm
Lifecycle Timeline
1DescriptionCVE.org
IBM i 7.6, 7.5, 7.4, and 7.3 could allow a remote attacker to cause a denial of service due to the use of an uninitialized variable.
AnalysisAI
Denial-of-service in IBM i 7.3 through 7.6 allows a remote unauthenticated attacker to crash or degrade service availability by triggering an uninitialized variable condition (CWE-457) over the network. The CVSS vector (AV:N/AC:L/PR:N/UI:N) confirms no authentication or user interaction is required, though impact is bounded to partial availability with no confidentiality or integrity exposure. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Based on the CVSS vector AV:N/AC:L/PR:N/UI:N, no special configuration or authentication is required - unauthenticated remote exploitation is possible against default configurations of affected IBM i versions 7.3, 7.4, 7.5, and 7.6. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 5.3 Medium rating reflects a tension between a favorable attack profile and a limited impact ceiling. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Apply the vendor-released patch by obtaining and installing the appropriate PTFs (Program Temporary Fixes) for the installed IBM i release from the IBM support advisory at https://www.ibm.com/support/pages/node/7283572. … Detailed patch versions, workarounds, and compensating controls in full report. |
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Same weakness CWE-457 – Use of Uninitialized Variable
View allSame technique Denial Of Service
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External POC / Exploit Code
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