AMD EPYC™ and EPYC™ Embedded Series Processors with Integrated Graphics

Summary

Potential vulnerabilities were reported that could impact some AMD EPYC™ and AMD EPYC™ Embedded Processors with Integrated Graphics. AMD has provided mitigations.

CVE Details

Refer to Glossary for explanation of terms 

CVE

CVE Description

CVSS Base Score

CVE-2024-36313

Improper input validation in the AMD Video Decoder Engine Firmware (VCN FW) could allow an attacker to craft a specially encoded video that, if processed by the affected firmware, could result in memory corruption and potentially impact system confidentiality, integrity, or availability.

8.9
CVSS:4.0:AV:N/AC:H/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
CWE: Not assigned

CVE-2026-40680

A use-after-free condition in the AMDGPU Linux kernel driver could allow a local unprivileged attacker to bypass CPU memory protection mechanisms, potentially resulting in loss of confidentiality, integrity, and availability.

8.5
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CWE-416: Use After Free

CVE-2026-0002

Improper isolation of GPU SMUIO I2C controller could allow a user-privileged attacker to perform malicious I2C commands to connected I2C devices that could potentially result in a denial-of-service condition of the GPU device.

7.0
CVSS:4.0/AV:L/AC:H/AT:P/PR:H/UI:N/VC:N/VI:H/VA:H/SC:N/SI:H/SA:H
CWE-189: Improper Isolation of Shared Resources on System-on-a-Chip (SoC)

CVE-2026-0425

Improper input validation in the AMD GPU Driver can allow a local attacker to trigger a use-after-free condition, potentially resulting in memory corruption or denial of service.

6.9
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N
CWE-416: Use After Free

CVE-2026-0423

Improper input validation in the AMD GPU driver could allow a local attacker to trigger unbounded memory allocations, potentially resulting in a denial of service.

6.8
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
CWE-789: Memory Allocation with Excessive Size Value

CVE-2026-0453

Improper input validation in the AMD Video Decoder Engine hardware (VCN JPEG hardware) could allow an attacker with local access to craft malicious input in a command buffer submitted to hardware, potentially resulting in loss of availability.

6.8
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
CWE-241: Improper Handling of Unexpected Data Type

CVE-2025-66661

A heap-based buffer overflow in the AMD Radeon™ Kernel Driver could allow an attacker to achieve privilege escalation potentially leading to arbitrary code execution.

5.9
CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N
CWE-122: Heap-based Buffer Overflow

CVE-2026-0422

A use-after-free condition in the AMD GPU driver could allow a local attacker to trigger a race condition, potentially resulting in a denial of service.

5.7
CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
CWE-416: Use After Free

CVE-2025-66662

Use of an out-of-range pointer offset within AMD Crash Defender could allow an attacker with local access to execute a specially crafted executable, potentially resulting in a crash or denial of service (DoS).

5.1
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
CWE-823: Use of Out-of-range Pointer Offset

CVE-2026-0439

A kernel buffer overflow in the AMD Radeon™ Kernel Driver could allow an attacker to trigger a buffer overrun in operating system-created buffers, potentially resulting in a crash resulting in loss of availability.

5.1
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
CWE-121: Stack-based Buffer Overflow

CVE-2025-62622

Exposure of sensitive information in AMD Crash Defender could allow an attacker to cause a kernel-mode address to be written to the user-controlled output buffer, potentially resulting in a loss of confidentiality.

4.8
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
CWE-200: Exposure of Sensitive Information to an Unauthorized Actor

CVE-2026-0440

Exposure of sensitive information to an unauthorized actor in the AMD Radeon™ driver could leak kernel addresses resulting in loss of confidentiality, or allow an attacker to allocate infinite memory causing a system crash resulting in loss of availability.

4.8
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
CWE-200: Exposure of Sensitive Information to an Unauthorized Actor

CVE-2026-0448

Exposure of internal kernel object addresses in the AMD Crash Defender kernel driver could allow a local user to infer aspects of kernel memory layout, potentially resulting in information disclosure.

4.8
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
CWE-497: Exposure of Sensitive System Information to an Unauthorized Control Sphere

CVE-2026-0451

Exposure of internal kernel object addresses in the AMD Defender kernel driver could allow a local user to infer aspects of kernel memory layout, potentially resulting in information disclosure.

4.8
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
CWE-497: Exposure of Sensitive System Information to an Unauthorized Control Sphere

CVE-2026-0471

Insertion of sensitive information into sent data in the AMD Crash Defender kernel driver could allow a local attacker to obtain information about internal kernel object addresses, potentially facilitating inference of kernel memory layout and impacting address randomization protections.

4.8
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
CWE-201: Insertion of Sensitive Information Into Sent Data

CVE-2026-0477

Improper removal of sensitive information before storage or transfer in AMD Crash Defender could allow an attacker to obtain kernel address information potentially resulting in loss of confidentiality.

4.8
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
CWE-212: Improper Removal of Sensitive Information Before Storage or Transfer

CVE-2026-0478

Improper removal of sensitive information before storage or transfer in AMD Crash Defender could allow an attacker to obtain kernel address information potentially resulting in loss of confidentiality.

4.8
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
CWE-212: Improper Removal of Sensitive Information Before Storage or Transfer

CVE-2026-0479

Improper removal of sensitive information before storage or transfer in AMD Crash Defender could allow an attacker to obtain kernel address information potentially resulting in loss of confidentiality.

4.8
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
CWE-212: Improper Removal of Sensitive Information Before Storage or Transfer

CVE-2024-36317

Execution with unnecessary privileges in the AMD Video Decoder Engine Firmware (VCN FW) could allow a privileged attacker to submit a maliciously crafted command causing the VCN FW to perform read/writes HW registers, potentially impacting confidentiality, integrity and/or availability.

CVSS:4.0: 6.2
CVSS:4.0:AV:L/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:L/SC:H/SI:H/SA:H
CWE-250: Execution with Unnecessary Privileges

CVE-2026-0472

An uncaught exception in the Windows Kernel Mode Display Driver could allow an attacker to cause a system crash resulting in denial of service.

5.1 SME
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
CWE-248: Uncaught Exception

Specific CVSS scores may change subject to your implementation. We encourage you to calculate CVSS scores independently for your system.

Affected Products and Mitigation

AMD recommends implementing the mitigated version indicated below.

*Note: Products believed to not be affected by the listed CVEs are not included.AMD EPYC™ Series Processors

AMD EPYC™ Series Processors

Product

CVE ID

Mitigation

Mitigation Release Date

AMD EPYC™ 4004 Series Processors

CVE-2024-36313

AMD Software: Adrenalin Edition 26.7.1
Radeon™ Software for Linux 26.14

2026-08-26

CVE-2026-0453

AMD Software: Adrenalin Edition 26.7.1
AMD Software: PRO Edition 26.Q3

2026-08-18

CVE-2026-40680

Radeon™ Software for Linux 26.13

2026-07-20

CVE-2026-0439

AMD Software: Adrenalin Edition 26.6.1
(26.10.19.02 RDNA3+)
AMD Software: Adrenalin Edition 26.6.1
(25.10.43.12 RDNA1/RDNA2)

2026-06-02

CVE-2026-0422

Radeon Software for Linux 26.12

2026-05-20

CVE-2026-0423

CVE-2026-0425

CVE-2026-0002

AMD Software: Adrenalin Edition 26.3.1
Radeon Software for Linux 26.12

2026-05-14

CVE-2026-0471

AMD Software: Adrenalin Edition 26.5.2
(25.10.43.10 RDNA1/RDNA2)

2026-05-14

CVE-2026-0477

CVE-2026-0478

CVE-2026-0479

CVE-2026-0440

AMD Software: Adrenalin Edition 26.3.1
(25.30.33.01 RDNA3+)
AMD Software: Adrenalin Edition 26.3.1
(25.10.43.05 RDNA1/RDNA2)

2026-03-19

CVE-2026-0472

CVE-2026-0448

AMD Software: Adrenalin Edition 26.1.1
(25.30.17.01 RDNA3+)
AMD Software: Adrenalin Edition 26.1.1
(25.10.41.01 RDNA1/RDNA2)

2026-01-21

CVE-2025-62622

AMD Software: Adrenalin Edition 25.12.1

2025-12-10

CVE-2025-66662

CVE-2026-0451

CVE-2024-36317

AMD Software: Adrenalin Edition 25.10.2
(25.20.21.01 RDNA3+, 25.10.33.02 RDNA1/RDNA2)
AMD Software: PRO Edition 25.Q3.1 (25.10.32 RDNA)

2025-10-29

CVE-2025-66661

AMD Software: Adrenalin Edition 25.10.2

2025-10-29

AMD EPYC™ 4005 Series Processors

CVE-2024-36313

AMD Software: Adrenalin Edition 26.7.1
Radeon™ Software for Linux 26.14

2026-08-26

CVE-2026-0453

AMD Software: Adrenalin Edition 26.7.1
AMD Software: PRO Edition 26.Q3

2026-08-18

CVE-2026-40680

Radeon™ Software for Linux 26.13

2026-07-20

CVE-2026-0439

AMD Software: Adrenalin Edition 26.6.1
(26.10.19.02 RDNA3+)
AMD Software: Adrenalin Edition 26.6.1
(25.10.43.12 RDNA1/RDNA2)

2026-06-02

CVE-2026-0002

AMD Software: Adrenalin Edition 26.3.1
Radeon Software for Linux 26.12

2026-05-20

CVE-2026-0422

Radeon Software for Linux 26.12

2026-05-20

CVE-2026-0423

CVE-2026-0425

CVE-2026-0471

AMD Software: Adrenalin Edition 26.5.2
(25.10.43.10 RDNA1/RDNA2)

2026-05-14

CVE-2026-0477

CVE-2026-0478

CVE-2026-0479

CVE-2026-0440

AMD Software: Adrenalin Edition 26.3.1
(25.30.33.01 RDNA3+)
AMD Software: Adrenalin Edition 26.3.1
|(25.10.43.05 RDNA1/RDNA2)

2026-03-19

CVE-2026-0472

CVE-2026-0448

AMD Software: Adrenalin Edition 26.1.1
(25.30.17.01 RDNA3+)
AMD Software: Adrenalin Edition 26.1.1
(25.10.41.01 RDNA1/RDNA2)

2026-01-21

CVE-2025-62622

AMD Software: Adrenalin Edition 25.12.1

2025-12-10

CVE-2025-66662

CVE-2026-0451

CVE-2024-36317

AMD Software: Adrenalin Edition 25.10.2
(25.20.21.01 RDNA3+, 25.10.33.02 RDNA1/RDNA2)
AMD Software: PRO Edition 25.Q3.1 (25.10.32 RDNA)

2025-10-29

CVE-2025-66661

AMD Software: Adrenalin Edition 25.10.2

2025-10-29

AMD EPYC™ Embedded Series Processors

Product

CVE ID

Mitigation

Mitigation Release Date

AMD EPYC™ Embedded 4005 Series Processors

CVE-2026-0453 

Version TBD

Target release planned for Dec'26

CVE-2026-0423

AMD Ubuntu 26.04 Distro Kernel(V7.0)

2026-09-30

CVE-2026-40680

AMD Ubuntu 26.04 Distro Kernel(V7.0)

2026-09-30

CVE-2026-0422

AMD Ubuntu 26.04 Distro Kernel(V7.0)

2026-09-30

Acknowledgement 

AMD thanks the following for reporting and engaging in coordinated vulnerability disclosure:

  • Bug Bounty researcher Sihyun Roh and Prof. Byoungyoung Lee, COMSEC Lab, Seoul National University: CVE-2026-40680
  • Bug Bounty researcher Lei Lu and Ji'an Zhou: CVE-2026-0425
  • Bug Bounty researcher "xnyuq": CVE-2026-0471, CVE-2026-0477, CVE-2026-0478, CVE-2026-0479
  • Bug Bounty researcher JaeYeong LEE: CVE-2026-0422, CVE-2026-0423
  • Bug Bounty researcher "Ori Nimron (@orinimron123)": CVE-2025-66661, CVE-2026-0439, CVE-2026-0440, CVE-2026-0448, CVE-2026-0451, CVE-2026-0472
  • Bug Bounty researcher Ming Shiang Tzou (@consolebreak): CVE-2025-66662
  • Bug Bounty researcher Aobo Wang(@M4x_1997): CVE-2025-62622
  • Internally reported: CVE-2024-36313, CVE-2024-36317, CVE-2026-0002, CVE-2026-0453

Revisions

Revision Date Description
2026-11-10 Initial version

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