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TI-2026-71462 Aliases CVE-2026-18343GHSA-q83c-9gx5-f3gp

IBM i lets local attackers modify the BOOTP table

Priority LOW 19CWE-269Published · Updated

Key facts

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

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-269.

Summary

IBM i 7.3, 7.4, 7.5 and 7.6 are affected. Improper privilege management (CWE-269) lets a local attacker with low privileges modify the BOOTP table because authorization is not properly enforced. The flaw affects confidentiality and integrity but not availability.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Description from the CNA

IBM i 7.3, 7.4, 7.5, and 7.6 could allow a local attacker to modify the BOOTP table due to improper authorization.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00085 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 · 1

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

Remediation

The sources list no fixed version for IBM i.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Timeline

  1. 2026-10-13 Threatist record created from CVE-2026-18343
  2. 2026-10-13 Alias added: GHSA-q83c-9gx5-f3gp
  3. 2026-10-13 CISA SSVC decision points changed

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