CVE-2026-9002

MEDIUM
MEDIUM Priority: 0.02 BB Relevance: 58/100
Published: 2026-06-30 Modified: 2026-10-25 First seen: 2026-10-29 Status: active

Attack Surface

Adjacent Low Complexity No Auth No Interaction

CVSS Vector Breakdown

AV: Adjacent
AC: Low
PR: None
UI: None
S: Unchanged
C: None
I: None
A: High

Description

IBM WebSphere Extreme Scale 8.6.1.0 through 8.6.1.6 could allow an adjacent attacker to cause a denial of service due to improper validation in the XDF decoder. The application processes deeply nested Protocol Buffers messages and attacker-controlled length prefixes without sufficient bounds checking, which may allow an attacker on the same network to trigger a StackOverflowError or OutOfMemoryError, resulting in a crash of the WebSphere Application Server JVM.

Weakness Classification (1)

Affected Software (1)

VendorProductVersion
ibm websphere_extreme_scale 8.6.1.0 – 8.6.1.6

References & Advisories (1)

Bug Bounty Relevance

58 / 100
✓ No authentication
✓ Low complexity
✓ No user interaction

CVSS Score

6.5 / 10.0 v3.1
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS — Exploitation Probability

0.27%
Raw Score 0.002690
Percentile 19.0%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00269
2026-10-28
0.00269

Intelligence Sources

nvd ref →