What is CVE-2026-19280?

CVE-2026-19280 is a medium-severity vulnerability in IBM I, classified under Out-of-bounds Write. CVSS score: 5.2/10. Published 2026-09-14.

How severe is CVE-2026-19280?

Medium severity. CVSS v3 base score is 5.2 out of 10.

Buffer overflow in IBM I

CVE-2026-19280

IBM i 7.6, 7.5, 7.4, and 7.3 could allow a denial of service as a result of a buffer overflow in a PASE process. An authenticated attacker could leverage this to terminate their own process.

Vulnerability class: Buffer Overflow

CVSS v3 metric

CVSS v3 base score 5.2 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:L.

Affected products

Ibm I — versions 7.3, 7.4, 7.5

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

References

psirt@us.ibm.com (vendor-advisory, patch)

Frequently asked questions

What is CVE-2026-19280?: CVE-2026-19280 is a medium-severity vulnerability in IBM I, classified under Out-of-bounds Write. CVSS score: 5.2/10. Published 2026-09-14.
How severe is CVE-2026-19280?: Medium severity. CVSS v3 base score is 5.2 out of 10.