8.8
HIGH
CVE-2021-41121
Vyper Stack-Based Memory Corruption Vulnerability (Memory)
Description

Vyper is a Pythonic Smart Contract Language for the EVM. In affected versions when performing a function call inside a literal struct, there is a memory corruption issue that occurs because of an incorrect pointer to the the top of the stack. This issue has been resolved in version 0.3.0.

INFO

Published Date :

Oct. 6, 2021, 6:15 p.m.

Last Modified :

Aug. 2, 2023, 4:22 p.m.

Remotely Exploitable :

Yes !

Impact Score :

5.9

Exploitability Score :

2.8
Affected Products

The following products are affected by CVE-2021-41121 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Vyperlang vyper
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2021-41121.

URL Resource
https://github.com/vyperlang/vyper/pull/2447 Patch Third Party Advisory
https://github.com/vyperlang/vyper/security/advisories/GHSA-xv8x-pr4h-73jv Third Party Advisory

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2021-41121 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2021-41121 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • Initial Analysis by [email protected]

    Oct. 15, 2021

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:N/AC:L/Au:S/C:P/I:P/A:P)
    Added CVSS V3.1 NIST AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
    Changed Reference Type https://github.com/vyperlang/vyper/pull/2447 No Types Assigned https://github.com/vyperlang/vyper/pull/2447 Patch, Third Party Advisory
    Changed Reference Type https://github.com/vyperlang/vyper/security/advisories/GHSA-xv8x-pr4h-73jv No Types Assigned https://github.com/vyperlang/vyper/security/advisories/GHSA-xv8x-pr4h-73jv Third Party Advisory
    Added CWE NIST CWE-119
    Added CPE Configuration OR *cpe:2.3:a:vyper_project:vyper:*:*:*:*:*:*:*:* versions up to (excluding) 0.3.0
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.10 }} 0.01%

score

0.41209

percentile

CVSS31 - Vulnerability Scoring System
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