Out-of-Bounds Affecting micropython/micropython package, versions [,1.28.0)
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-UNMANAGED-MICROPYTHONMICROPYTHON-15248304
- published8 Feb 2026
- disclosed6 Feb 2026
- creditOneafter
Introduced: 6 Feb 2026
CVE-2026-1998 (opens in a new tab)How to fix?
Upgrade micropython/micropython to version 1.28.0 or higher.
Overview
Affected versions of this package are vulnerable to Out-of-Bounds via the mp_import_all function. An attacker can cause memory corruption by supplying crafted input locally.