Is CVE-2025-0040 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2025-0040 being exploited in the wild.

How severe is CVE-2025-0040?

Informational severity, with a CVSS score of 5.3, published 15 May 2026.

Is there a fix for CVE-2025-0040?

No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

How is CVE-2025-0040 attacked?

It is attacked with physical access, in device firmware.

Am I affected by CVE-2025-0040?

Check whether you run Amd Processors. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2025-0040: AMD Processor improper access control in JTAG and AXI interface

CVE-2025-0040 · Severity: info · CVSS 5.3 · Published 2026-05-15

A security vulnerability in certain AMD hardware components could allow an individual with physical access to the device to bypass security controls. By interacting with the chip's debugging interface, an attacker could read or modify sensitive internal data. This could lead to the theft of confidential information or the compromise of the system's integrity.

Technologies: Amd Processors. Vendors: Amd.

Quick answers

Is CVE-2025-0040 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2025-0040 being exploited in the wild.
How severe is CVE-2025-0040?: Informational severity, with a CVSS score of 5.3, published 15 May 2026.
Which products and versions are affected?: AMD Processors.
Is there a fix for CVE-2025-0040?: No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2025-0040 attacked?: It is attacked with physical access, in device firmware.
Am I affected by CVE-2025-0040?: Check whether you run Amd Processors. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

An improper access control vulnerability exists in the interface between the Joint Test Action Group (JTAG) and the Advanced Extensible Interface (AXI) on affected AMD hardware. A physical attacker can exploit this flaw to access cross-chip debug (XCD) registers, which are typically restricted. Successful exploitation allows for the reading or overwriting of these registers, potentially compromising data confidentiality and integrity. The attack requires physical access and is characterized by high complexity and specific timing/environmental conditions (as indicated by the CVSS 4.0 AC:H/AT:P metrics).

Affected products

AMD Processors

Timeline

2026-05-15: disclosed: Initial NVD publication date

References

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