---
id: CVE-2026-40660
title: >-
  A heap-based out-of-bounds (OOB) read vulnerability in the AMD Compressonator
  SDK could allow an attacker with local access to read out-of-bounds heap
  memory, potentially resulting in information disclosure or application crash.
summary: >-
  A heap-based out-of-bounds (OOB) read vulnerability in the AMD Compressonator
  SDK could allow an attacker with local access to read out-of-bounds heap
  memory, potentially resulting in information disclosure or application crash.
severity: medium
cvss: 5.2
cvssVector: 'CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:P/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N'
cvssSource: cna
cwe:
  - CWE-125
vendor: AMD
product: AMD Compressionator SDK
affected:
  - compressionator_sdk (all versions)
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-11-03T15:46:30.466316Z'
published: '2026-11-03'
updated: '2026-11-03'
sourceUpdated: '2026-11-03T15:46:37.925Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-40660'
references:
  - url: >-
      https://www.amd.com/en/resources/product-security/bulletin/AMD-SB-6032.html
tags:
  - cve.org
epss: 0.00135
epssPercentile: 0.02975
ingestedAt: '2026-11-05T20:33:06.274Z'
---

## Overview

A heap-based out-of-bounds (OOB) read vulnerability in the AMD Compressonator SDK could allow an attacker with local access to read out-of-bounds heap memory, potentially resulting in information disclosure or application crash.

## Affected

- `compressionator_sdk (all versions)`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.