IBM i is Affected by an Improper Validation Vulnerability

published 2026-10-16 23 d ago modified 2026-10-23 16 d ago also EUVD-2026-103139

cvss: 3.7; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.2%; EPSS 0.2% chance of exploitation in 30 days, percentile 8%
public exploits: 0; none known

IBM i 7.3, 7.4, 7.5, and 7.6 could allow a remote attacker to perform unauthorized manipulation of distributed transactions due to improper validation of attacker-supplied transaction identifiers.

Patch / fix

links 1

ibm.com/support/pages/node/7292222 advisory

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: partial
Assessed: 23 d ago (2026-10-16)

Exploit prediction

0.19% chance of exploitation in the next 30 days, higher than 8% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	3.7	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
NVD	3.1	5.3	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Affected products

IBM i

Classification

Weakness

CWE-285 Improper Authorization

References

ibm.com /support/pages/node/7292222
vendor-advisory, patch

Sources

CVE List CVE-2026-17275
NVD CVE-2026-17275

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Summary