EUVD-2026-58473
GHSA-3gvr-7jcv-xhw7
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Description confirms authenticated attacker (PR:L); impact is temporary DoS only (A:L, C:N), contradicting vendor's C:L scoring.
Primary rating from Vendor (ibm).
CVSS VectorNVD
Lifecycle Timeline
2DescriptionNVD
IBM i 7.6, 7.5, 7.4, and 7.3 could allow an authenticated attacker to force a NetServer server thread exception, caused by an integer overflow during bounds checking in request processing. The attacker could exploit this vulnerability to cause a temporary denial of service.
AnalysisAI
IBM i NetServer is susceptible to a temporary denial of service via an authenticated integer overflow in request processing bounds checking, affecting versions 7.3 through 7.6. An authenticated attacker can craft a malformed request that triggers an integer overflow, causing a NetServer server thread exception and disrupting network file and print sharing services. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Authentication to IBM i is required - the CVE description explicitly states 'authenticated attacker', meaning an attacker must possess valid credentials for the IBM i system prior to exploitation; this directly limits the threat to insiders, compromised accounts, or attackers who have already obtained credentials. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | CVSS base score is 6.5 with a network attack vector and low complexity, suggesting moderate risk; however, several signals warrant closer scrutiny. … 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 | The primary remediation is to apply the vendor-released patch documented in IBM Support page https://www.ibm.com/support/pages/node/7283573 - administrators should consult this advisory to identify the specific PTF (Program Temporary Fix) applicable to their IBM i release level (7.3, 7.4, 7.5, or 7.6). … Detailed patch versions, workarounds, and compensating controls in full report. |
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Same weakness CWE-190 – Integer Overflow or Wraparound
View allSame technique Integer Overflow
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External POC / Exploit Code
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