CVE-2026-86093CWE-121

CVE-2026-86093

High · published September 11, 2026

CVSS v3.1
7.5
EPSS
0%
Percentile
37.7
In the wild
Unconfirmed
What it is

IBM Db2 11.5.0 through 11.5.9, and 12.1.0 through 12.1.5 could allow an attacker with the ability to control or impersonate a DRDA server endpoint to execute arbitrary commands on Db2 clients due to a stack-based buffer overflow that improperly copies user-controlled data into a fixed-size stack buffer without bounds checking.

The record
Technical detail
CVSS v3.1
7.5 · HIGH
Vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00445 · 37.7th percentile
Weakness
CWE-121 · Stack-based Buffer Overflow
Published
2026-09-11T02:17Z
Affected products (2)
ProductVersionsFixed in
ibm/db2≥ 11.5, ≤ 11.5.9—
ibm/db2≥ 12.1.0, ≤ 12.1.5—
References (1)
https://www.ibm.com/support/pages/node/7286993 · [email protected]
EPSS history
Timeline
  • 12 SEP 03:22Z
    EPSS moved — → 0%
    epss
  • 10 SEP 21:24Z
    IBM® Db2® federated server could allow an attacker with the ability to control or impersonate a DRDA server endpoint to execute arbitrary commands under certain conditions
    cvelistv5