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.
CVE-2024-24564
This low-severity CVE scores 3.7 under NVD CVSS v3. EPSS exploit probability: 0.6% (44th percentile of EPSS-scored CVEs). GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
- Lower severity and no public exploit yet
A fix is available — apply it.
- CVSS v3
- 3.7
- EG Score
- 3.7LOWmedium confidence
- EG Risk
- 33EG Risk 33/100CISA SSVC
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity37% × 45%Exploitation40% × 40%Automatability0% × 15%CISA SSVC: Track at low or medium mission impact; Track* at high (mission-essential systems).Action: A fix is available. Apply it within your standard update timelines. - EPSS PROB
- 0.6%
- EPSS %ILE
- 45th
- KEV
- Not listed
CISA SSVCTrack at low or medium mission impact; Track* at high (mission-essential systems).
A fix is available. Apply it within your standard update timelines.
Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table
Published
February 26, 2024
Last Modified
January 16, 2025
References (3)
- security-advisories@githubhttps://github.com/vyperlang/vyper/commit/3d9c537142fb99b2672f21e2057f5f202cde194f
- security-advisories@githubhttps://github.com/vyperlang/vyper/security/advisories/GHSA-4hwq-4cpm-8vmx
- af854a3a-2127-422b-91ae-364da2661108https://github.com/vyperlang/vyper/security/advisories/GHSA-4hwq-4cpm-8vmx
Affected Packages
(1 across 1 ecosystem)
PyPI(1)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| vyper | 0.1.0b1 ... v0.0.4 (124 versions) |
| — |
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 7× in last 7d / 24× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
Showing the most recent 100 of 182 total refreshes for this CVE.
- 2026-10-09 20:05 UTCEPSS rescore
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- 2026-07-23 02:34 UTCEG score recompute
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- 2026-07-22 14:07 UTCEPSS rescore
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- 2026-07-07 13:45 UTCEPSS rescore
Related CVEs(same product + same CWE)
Same product
10 shownPyPI:vyper
Frequently asked(5)
What is CVE-2024-24564?
When was CVE-2024-24564 disclosed?
Is CVE-2024-24564 actively exploited?
What is the CVSS score of CVE-2024-24564?
How do I remediate CVE-2024-24564?
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2024-24564
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