All vulnerabilities
CVE-2026-81858

i: IBM i is Affected By A Denial of Service Vulnerability in Host Servers

IBM i
Open in ThreatlineRecord JSON
CVSS
5.4Medium
ExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.48%Chance of exploitation activity in the next 30 days, higher than 40% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed inNone listedNo source names a fixed version. Check the vendor advisory below
Published12 Oct 2026Updated 13 Oct 2026CVE List

What fixes it

No source in this snapshot names a fixed version. The vendor advisories under References are the place to check.

Description

IBM i 7.3, 7.4, 7.5, and 7.6 could allow a remote authenticated attacker to cause a denial of service and obtain information due to an out-of-bounds read in the File Server.

Text from CVE List

Affected versions 4

  • iaffected: 7.6CVE List
  • iaffected: 7.5CVE List
  • iaffected: 7.4CVE List
  • iaffected: 7.3CVE List

References 1