Read the docs
TI-2026-14066 Aliases CVE-2026-16896GHSA-5j9j-5mc9-fhx9

IBM i is Affected By Multiple Vulnerabilities in Network Authentication Service

Priority LOW 30CWE-367Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
High · High · None
Fix status
No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA.

Summary

IBM i 7.6, 7.5, 7.4, and 7.3 could allow a local authenticated attacker to obtain unauthorized access to files due to a time-of-check time-of-use (TOCTOU) race condition.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.001 0th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
IBMi7.6; 7.5; 7.4; 7.3—No fix listedCNA
  • i VendorIBM Affected 7.6; 7.5; 7.4; 7.3 Fixed in — No fix listed CNA

CPE configurations NVD · 4

CPEVersionsRoleVendor
cpe:2.3:o:ibm:i:7.3:*:*:*:*:*:*:*7.3VulnerableIBM
cpe:2.3:o:ibm:i:7.4:*:*:*:*:*:*:*7.4VulnerableIBM
cpe:2.3:o:ibm:i:7.5:*:*:*:*:*:*:*7.5VulnerableIBM
cpe:2.3:o:ibm:i:7.6:*:*:*:*:*:*:*7.6VulnerableIBM
  • cpe:2.3:o:ibm:i:7.3:*:*:*:*:*:*:* Versions 7.3 Vulnerable ·IBM
  • cpe:2.3:o:ibm:i:7.4:*:*:*:*:*:*:* Versions 7.4 Vulnerable ·IBM
  • cpe:2.3:o:ibm:i:7.5:*:*:*:*:*:*:* Versions 7.5 Vulnerable ·IBM
  • cpe:2.3:o:ibm:i:7.6:*:*:*:*:*:*:* Versions 7.6 Vulnerable ·IBM

Remediation

No fixed version listed by the sources yet.

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Advisory ·

    IBM i — ibm.com/support/pages/node/7283293

    2 records Highest priority Priority LOW 2 LOW

    Other records, highest priority first

    • TI-2026-14068 IBM i is Affected By Multiple Vulnerabilities in Network Authentication ServicePriority LOW 35
    Show all 2 records → Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-16896
  2. 2026-10-03 Alias added: GHSA-5j9j-5mc9-fhx9

References

Patch 1

  • TI-2024-18115 IBM i privilege escalation CVSS 3.1HIGH 7.8
  • TI-2026-14283 IBM i is Affected By Remote Code Execution Vulnerability in Line Printer Daemon [] CVSS 3.1CRITICAL 9.8
  • TI-2023-14729 IBM i command execution CVSS 3.1CRITICAL 9.8
  • TI-2026-14279 IBM i is Affected By Denial of Service Vulnerabilities in NFS [, ] CVSS 3.1CRITICAL 9.1
  • TI-2026-14196 IBM i is Affected By Denial of Service Vulnerabilities in NFS [, ] CVSS 3.1CRITICAL 9.1
  • TI-2026-13994 IBM i is Affected By Multiple Vulnerabilities in Simple Mail Transfer Protocol CVSS 3.1CRITICAL 9.1
See all 207 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences