AMD Zynq UltraScale+ MPSoC up to 2026.0 Usb Boot Mode buffer overflow

CVSS Meta Temp Score
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CTI Interest Score
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8.4$0-$5k2.34-

Summaryinfo

A vulnerability identified as very critical has been detected in AMD Zynq UltraScale+ MPSoC, Zynq UltraScale+ RFSoC and Kria SOM up to 2026.0. This issue affects some unknown processing of the component Usb Boot Mode. Performing a manipulation results in buffer overflow. This vulnerability is known as CVE-2026-0461. Attacking locally is a requirement. No exploit is available. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in AMD Zynq UltraScale+ MPSoC, Zynq UltraScale+ RFSoC and Kria SOM up to 2026.0. It has been classified as very critical. This affects some unknown functionality of the component Usb Boot Mode. The manipulation with an unknown input leads to a buffer overflow vulnerability. CWE is classifying the issue as CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

Insufficient boundary validation in the USB boot mode implementation of AMD Zynq™ UltraScale+ MPSoC and RFSoC devices could allow unbounded Device Firmware Upgrade (DFU) download requests to overflow the DDR receive buffer into FSBL memory, potentially resulting in unauthorized code execution during the boot process. This issue could impact the confidentiality, integrity, or availability of affected system.

It is possible to read the advisory at amd.com. This vulnerability is uniquely identified as CVE-2026-0461 since 12/06/2025. The exploitability is told to be easy. Attacking locally is a requirement. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 10/06/2026).

Upgrading to version 2026.1 eliminates this vulnerability.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Vendor

Name

Version

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: 8.8
VulDB Meta Temp Score: 8.4

VulDB Base Score: 8.8
VulDB Temp Score: 8.4
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

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

Exploitinginfo

Class: Buffer overflow
CWE: CWE-120 / CWE-119
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: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Zynq UltraScale+ MPSoC/Zynq UltraScale+ RFSoC/Kria SOM 2026.1

Timelineinfo

12/06/2025 CVE reserved
10/05/2026 +303 days VulDB entry created
10/06/2026 +0 days Advisory disclosed
10/06/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: amd.com
Status: Confirmed

CVE: CVE-2026-0461 (🔒)
GCVE (CVE): GCVE-0-2026-0461
GCVE (VulDB): GCVE-100-413835

Entryinfo

Created: 10/06/2026 00:06
Changes: 10/06/2026 00:06 (66)
Complete: 🔍
Cache ID: 216::103

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