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Informational 21 Bitcoin

Mk hardware

CK38553d1a View source ↗
Public commit record

What the developer wrote

Authored by Peter D. Gray

0/100 · Opaque
Mk hardware
! Very short subject! Too few words to establish purpose! No meaningful explanatory body! Opaque security-relevant change
The short version

What changed, and why it matters

This commit adds support for a new COLDCARD hardware revision, the Mk5. It is a routine product-enablement patch: it teaches the firmware, bootloader, build system, simulator, and signing tools to recognize and run on Mk5 devices. There is no indication of a security vulnerability being fixed or introduced; the changes are about hardware detection, display initialization, graphics, and test coverage.

Recommended action

No security action required. Treat as normal hardware-support release engineering. Reviewers may want to verify that the new MK_5_OK bit does not overlap with any previously used compatibility bits and that Mk5 firmware downgrade/upgrade paths are correctly enforced, but the diff itself does not show a vulnerability.

Security signals we found

01

No security-relevant signals detected in the diff.

02

Change is hardware bring-up / product enablement only.

03

No fixes for memory corruption, authentication bypass, cryptographic flaws, or privilege escalation.

04

No vendor disclosure of security relevance in commit message or code comments.

Risk score

Why this scored 21/100

Our methodology →
Potential impact 2/30
Exploitability 1/25
Stealth signal 1/15
Affected reach 3/15
Confidence 9/10
Evidence quality 5/5
Human-validated context

Community notes

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The AI analysis stands alone for now. Submit a note if you can add evidence or important context.

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