CVE-2026-16439CWE-124

CVE-2026-16439

Critical · published July 21, 2026

CVSS v3.1
9.1
EPSS
0%
Percentile
36.2
In the wild
Unconfirmed
What it is

In Eclipse OpenJ9 versions up to 0.60, using -Xtrace to trace method arguments can lead to buffer underflow.

The record
Technical detail
CVSS v3.1
9.1 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00430 · 36.2th percentile
Weakness
CWE-124 · Buffer Underwrite ('Buffer Underflow')
Published
2026-07-21T22:16Z
Affected products (1)
ProductVersionsFixed in
eclipse/openj9≥ 0.8.0, < 0.60.00.60.0
References (2)
https://github.com/eclipse-openj9/openj9/pull/24394 · [email protected]https://gitlab.eclipse.org/security/cve-assignment/-/work_items/192 · [email protected]
EPSS history
Timeline
  • 21 JUL 17:28Z
    Eclipse OpenJ9 : Using -Xtrace to trace method arguments can lead to buffer underflow
    cvelistv5