CVE-2023-31146
Estado: ModificadaCrítica (9.1)—
Vyper is a Pythonic smart contract language for the Ethereum virtual machine. Prior to version 0.3.8, during codegen, the length word of a dynarray is written before the data, which can result in out-of-bounds array access in the case where the dynarray is on both the lhs and rhs of an assignment. The issue can cause data corruption across call frames. The expected behavior is to revert due to out-of-bounds array access. Version 0.3.8 contains a patch for this issue.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
- Puntuación base: 9.1
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 1.24%
- Percentil entre todas las CVEs puntuadas: 68
- Fecha de la puntuación: 6/10/2026
EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).
Tecnologías afectadas (1)
CWE
- CWE-787
- CWE-787
Referencias
- https://github.com/vyperlang/vyper/commit/4f8289a81206f767df1900ac48f485d90fc87edb
- https://github.com/vyperlang/vyper/security/advisories/GHSA-3p37-3636-q8wv
- https://github.com/vyperlang/vyper/commit/4f8289a81206f767df1900ac48f485d90fc87edb
- https://github.com/vyperlang/vyper/security/advisories/GHSA-3p37-3636-q8wv
JSON original (NVD)
Mostrar
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