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Low 28 Bitcoin

refactor(core): disable sys.argv for firmware

TZ3a43e8b7 View source ↗
Public commit record

What the developer wrote

Authored by Martin Milata

57/100 · Thin
refactor(core): disable sys.argv for firmware

[no changelog]
✓ Descriptive subject✓ Names a concrete action or component✓ Uses a recognizable type or scope! No meaningful explanatory body
The short version

What changed, and why it matters

This commit removes support for sys.argv (command-line argument lists) from the Trezor firmware's embedded MicroPython interpreter. In a hardware wallet, there is no legitimate command line, so keeping sys.argv enabled only added unused code and a small potential attack surface. The change is a hardening/refactoring step rather than a fix for a known exploit.

Recommended action

Treat as a low-risk hardening commit. No urgent action required. Reviewers may verify that emulator/unix builds still correctly enable sys.argv and that no firmware code depends on sys.argv at runtime.

Security signals we found

01

Removal of unused interpreter feature reduces attack surface

02

Configuration macro disables sys.argv only for firmware target

03

No changelog entry suggests routine refactoring/hardening

04

No direct evidence of an exploitable vulnerability being fixed

Risk score

Why this scored 28/100

Our methodology →
Potential impact 5/30
Exploitability 5/25
Stealth signal 5/15
Affected reach 5/15
Confidence 5/10
Evidence quality 3/5
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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