AMD EPYC 9005 Processors L1D Cache information disclosure

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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3.3$0-$5k0.00+

Summaryinfo

A vulnerability has been found in AMD EPYC 9005 Processors, EPYC 8005 Processors, Ryzen 9000HX Processors, Ryzen AI 300 Processors, Ryzen 9000 Desktop Processors, Ryzen AI Max 400 Processors, Ryzen AI Max 300 Processors, Ryzen AI 400 Desktop Processors, Ryzen Z1 Processors, Ryzen Z2 Processors Extreme, Ryzen Threadripper PRO 7000 WX-Series Processors, Ryzen Threadripper 7000 Processors, Ryzen AI 400 Processors, Ryzen Threadripper 9000 Processors, Ryzen Threadripper PRO 9000 WX-Series Processors, EPYC Embedded 9005 Processors, Ryzen Embedded 9000 Processors, EPYC Embedded 2005 Processors and Ryzen Embedded P100 Processors and classified as problematic. This issue affects some unknown processing of the component L1D Cache. This manipulation causes information disclosure. This vulnerability is registered as CVE-2026-0004. The attack needs to be launched locally. No exploit is available.

Detailsinfo

A vulnerability has been found in AMD EPYC 9005 Processors, EPYC 8005 Processors, Ryzen 9000HX Processors, Ryzen AI 300 Processors, Ryzen 9000 Desktop Processors, Ryzen AI Max 400 Processors, Ryzen AI Max 300 Processors, Ryzen AI 400 Desktop Processors, Ryzen Z1 Processors, Ryzen Z2 Processors Extreme, Ryzen Threadripper PRO 7000 WX-Series Processors, Ryzen Threadripper 7000 Processors, Ryzen AI 400 Processors, Ryzen Threadripper 9000 Processors, Ryzen Threadripper PRO 9000 WX-Series Processors, EPYC Embedded 9005 Processors, Ryzen Embedded 9000 Processors, EPYC Embedded 2005 Processors and Ryzen Embedded P100 Processors and classified as problematic. Affected by this vulnerability is an unknown part of the component L1D Cache. The manipulation with an unknown input leads to a information disclosure vulnerability. The CWE definition for the vulnerability is CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. As an impact it is known to affect confidentiality. The summary by CVE is:

A transient execution vulnerability in some AMD processors may allow an attacker with the ability to execute code on the system to infer data in the L1D cache, potentially resulting in the leakage of sensitive information across privileged boundaries.

It is possible to read the advisory at amd.com. This vulnerability is known as CVE-2026-0004 since 10/09/2025. The exploitation appears to be easy. Attacking locally is a requirement. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1592 according to MITRE ATT&CK.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

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License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 3.3
VulDB Meta Temp Score: 3.3

VulDB Base Score: 3.3
VulDB Temp Score: 3.3
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Information disclosure
CWE: CWE-200 / CWE-284 / CWE-266
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: No

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

10/09/2025 CVE reserved
11/12/2026 +399 days Advisory disclosed
11/12/2026 +0 days VulDB entry created
11/12/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: amd.com
Status: Confirmed

CNA: AMD
CVE: CVE-2026-0004 (🔒)

GCVE (CVE): GCVE-0-2026-0004
GCVE (VulDB): GCVE-100-436495

Entryinfo

Created: 11/12/2026 20:27
Changes: 11/12/2026 20:27 (64)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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