CVE-2024-24564

Name: CVE-2024-24564
Creator: NVD / NIST
Published: 2024-02-26T20:19:05.627+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.3/10EPSS 0.56%

Last modified Jun 17, 2026

CVE-2024-24564 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. Vyper is a pythonic Smart Contract Language for the ethereum virtual machine. When using the built-in `extract32(b, start)`, if the `start` index provided has for side effect to update `b`, the byte array to extract `32` bytes from, it could be that some dirty memory is read and returned by `extract32`. EPSS estimates a 0.56% chance of exploitation in the next 30 days.

Description

Vyper is a pythonic Smart Contract Language for the ethereum virtual machine. When using the built-in `extract32(b, start)`, if the `start` index provided has for side effect to update `b`, the byte array to extract `32` bytes from, it could be that some dirty memory is read and returned by `extract32`. This vulnerability is fixed in 0.4.0.

Metrics

CVSS 3.1

5.3/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

EPSS Probability

0.56%

42.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-125

Affected Software

Vendor	Product	Versions
Vyperlang	Vyper	< 0.4.0

References

https://github.com/vyperlang/vyper/commit/3d9c537142fb99b2672f21e2057f5f202cde194fPatch
https://github.com/vyperlang/vyper/security/advisories/GHSA-4hwq-4cpm-8vmxExploit, Vendor Advisory
https://github.com/vyperlang/vyper/security/advisories/GHSA-4hwq-4cpm-8vmxExploit, Vendor Advisory

Timeline

Published: Feb 26, 2024
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2024-24564?

How severe is CVE-2024-24564?

CVE-2024-24564 has a CVSS score of 5.3/10 (MEDIUM severity). The EPSS model estimates a 0.56% probability of exploitation in the next 30 days.

How do I fix CVE-2024-24564?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2024-24564?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST