EUVD-2026-71476
GHSA-472r-2r27-9m8x
Severity by source
AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
Authenticated network access with low complexity; C:L/I:L reflects partial restriction bypass, not full system compromise; no availability impact.
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 authenticated attacker to bypass security restrictions due to predictable server seeds.
AnalysisAI
Security restriction bypass in IBM i versions 7.3, 7.4, 7.5, and 7.6 enables remote authenticated attackers to circumvent platform-level access controls by exploiting predictable server-generated seed values (CWE-330). The vulnerability stems from insufficient entropy in IBM i's seed generation process, allowing an attacker with a valid low-privilege account to predict protected values - such as session tokens, nonces, or challenge-response material - and leverage them to bypass enforced security boundaries. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires possession of a valid IBM i user account with at least low-privilege access (PR:L per CVSS) - unauthenticated remote exploitation is not indicated by the vector. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 3.1 score of 5.4 (AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N) places this in the moderate range - significant enough for prioritized patching in high-value environments but not immediately catastrophic. … 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 | IBM has released a patch, accessible via the support advisory at https://www.ibm.com/support/pages/node/7285844. … Detailed patch versions, workarounds, and compensating controls in full report. |
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Same weakness CWE-330 – Use of Insufficiently Random Values
View allSame technique Authentication Bypass
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External POC / Exploit Code
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