Findings

CVE-2026-17487

IBM i 7.3, 7.4, 7.5, and 7.6 could allow a remote attacker to enumerate user profiles due to the return of distinct error codes during the sign-on process.

Published Oct 13, 2026 · updated Oct 14, 2026 · ibm i

IBM i 7.3, 7.4, 7.5, and 7.6 could allow a remote attacker to enumerate user profiles due to the return of distinct error codes during the sign-on process.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Oct 13, 2026 · NIST NVD

    Detected

    IBM i 7.3, 7.4, 7.5, and 7.6 could allow a remote attacker to enumerate user profiles due to the return of distinct error codes during the sign-on process.

  2. Oct 14, 2026 · NIST NVD

    Updated

    IBM i 7.3, 7.4, 7.5, and 7.6 could allow a remote attacker to enumerate user profiles due to the return of distinct error codes during the sign-on process.

Affected

  • cpe ibm/iversion unspecified

Sources

  • CVE.orgVulnerability recordCVE-2026-17487

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-17487

    30-day exploitation probability 0.2%

    first.org
  • NIST NVDVulnerability recordCVE-2026-17487

    IBM i 7.3, 7.4, 7.5, and 7.6 could allow a remote attacker to enumerate user profiles due to the return of distinct error codes during the sign-on process.

    nvd.nist.gov

References

CVE-2026-17487 · ZeroDay Findings