IBM i Denial of Service

published 2026-03-17 7 mo ago modified 2026-06-17 4 mo ago also EUVD-2026-12645

cvss: 7.5; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.5%; EPSS 0.5% chance of exploitation in 30 days, percentile 45%
public exploits: 0; none known

IBM i 7.6 could allow a remote attacker to cause a denial of service using failed authentication connections due to improper allocation of resources.

Patch / fix

links 1

ibm.com/support/pages/node/7266422 advisory

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: partial
Assessed: 7 mo ago (2026-03-18)

Exploit prediction

0.54% chance of exploitation in the next 30 days, higher than 45% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	7.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

IBM i

Classification

Weakness

CWE-770 Allocation of Resources Without Limits or Throttling

References

ibm.com /support/pages/node/7266422
vendor-advisory, patch

Sources

CVE List CVE-2026-1376
NVD CVE-2026-1376

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary