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CVE-2025-66664: CWE-125 Out-of-bounds Read in AMD AMD Radeon™ RX 6000 Series Graphics Products

0
Medium
VulnerabilityCVE-2025-66664cvecve-2025-66664cwe-125
Published: Fri May 15 2026 (05/15/2026, 02:41:56 UTC)
Source: CVE Database V5
Vendor/Project: AMD
Product: AMD Radeon™ RX 6000 Series Graphics Products

Description

CVE-2025-66664 is a medium severity vulnerability in AMD Radeon RX 6000 Series graphics products involving an out-of-bounds read due to insufficient parameter sanitization in the AMD Secure Processor TEE SOC Driver. An attacker with high privileges could issue a malformed SR-IOV command to trigger this flaw, potentially exposing SOC Driver memory contents or causing an exception. There is no confirmed patch or official remediation available at this time. No known exploits are reported in the wild.

CVSS v4.0

Score 4.6medium

Attack Vector
Local
Attack Complexity
Low
Attack Requirements
None
Privileges Required
High
User Interaction
None
Vuln. Confidentiality
Low
Vuln. Integrity
None
Vuln. Availability
Low
Subsq. Confidentiality
None
Subsq. Integrity
None
Subsq. Availability
None
CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N

AI-Powered Analysis

Machine-generated threat intelligence

AILast updated: 05/22/2026, 15:35:30 UTC

Technical Analysis

This vulnerability arises from improper validation of parameters in the AMD Secure Processor Trusted Execution Environment (TEE) SOC Driver within AMD Radeon RX 6000 Series graphics products. Specifically, an attacker with high privileges can send a malformed DRV_SOC_CMD_ID_LOAD_GFX_IP_FW SR-IOV command, causing an out-of-bounds read (CWE-125). This may lead to exposure of sensitive SOC Driver memory or cause an exception in the driver. The CVSS 4.0 base score is 4.6, reflecting a medium severity with local attack vector, low complexity, and no user interaction required. No patch or official remediation level has been disclosed by AMD as of the publication date.

Potential Impact

Successful exploitation could result in unauthorized reading of memory beyond intended boundaries within the SOC Driver, potentially exposing sensitive information or causing system instability through exceptions. The attack requires local access with high privileges, limiting the attack surface. There are no reports of active exploitation in the wild.

Mitigation Recommendations

Patch status is not yet confirmed — check the AMD vendor advisory for current remediation guidance. Until an official fix is released, restrict high privilege local access to trusted users only to reduce risk. Monitor AMD communications for updates on patches or mitigations.

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Technical Details

Data Version
5.2
Assigner Short Name
AMD
Date Reserved
2025-12-06T15:03:58.971Z
Cvss Version
4.0
State
PUBLISHED
Remediation Level
null

Threat ID: 6a068dc1ec166c07b09ac9fa

Added to database: 5/15/2026, 3:06:41 AM

Last enriched: 5/22/2026, 3:35:30 PM

Last updated: 6/6/2026, 8:32:29 AM

Views: 54

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