CVE-2026-17220CWE-120

CVE-2026-17220

High · published August 13, 2026

CVSS v3.1
8.2
EPSS
1%
Percentile
45.9
In the wild
Unconfirmed
What it is

IBM i 7.6, 7.5, 7.4, and 7.3 could allow a remote attacker to cause a denial of service and modify authentication metadata due to a buffer overflow.

The record
Technical detail
CVSS v3.1
8.2 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H
CVSS v4.0
Not supplied
EPSS
0.00561 · 45.9th percentile
Weakness
CWE-120 · Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
Published
2026-08-13T23:17Z
Affected products (4)
ProductVersionsFixed in
ibm/iall versions—
ibm/iall versions—
ibm/iall versions—
ibm/iall versions—
References (1)
https://www.ibm.com/support/pages/node/7283578 · [email protected]
EPSS history
Timeline
  • 13 AUG 18:49Z
    IBM i is Affected By Multiple Vulnerabilities in Host Servers
    cvelistv5