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Vulnerability record · CVE-2024-28123 · published 21 March 2024

CVE-2024-28123: Wasmi-labs wasmi out-of-bounds write vulnerability

Wasmi Labs · Wasmi

Wasmi is an efficient and lightweight WebAssembly interpreter with a focus on constrained and embedded systems. In the WASMI Interpreter, an Out-of-bounds Buffer Write will arise if the host calls or resumes a Wasm function with more parameters than the default limit (128), as it will surpass the stack value. This doesn’t affect calls from Wasm to Wasm, only from host to Wasm. This vulnerability was patched in version 0.31.1.

9.8 CVSS 3.1 Critical EPSS 0.80% · top 45.2% CWE-787 · Out-of-bounds write
9.8CVSS 3.1 base score
0.80%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
6References
17 Jun 2026Last modified by NVD

Description

Wasmi is an efficient and lightweight WebAssembly interpreter with a focus on constrained and embedded systems. In the WASMI Interpreter, an Out-of-bounds Buffer Write will arise if the host calls or resumes a Wasm function with more parameters than the default limit (128), as it will surpass the stack value. This doesn’t affect calls from Wasm to Wasm, only from host to Wasm. This vulnerability was patched in version 0.31.1.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/wasmi-labs/wasmi/commit/f7b3200e9f3dc9e2cbca966cb255c228453c792f Patch
https://github.com/wasmi-labs/wasmi/releases/tag/v0.31.1 Release Notes
https://github.com/wasmi-labs/wasmi/security/advisories/GHSA-75jp-vq8x-h4cq Vendor Advisory
https://github.com/wasmi-labs/wasmi/commit/f7b3200e9f3dc9e2cbca966cb255c228453c792f Patch
https://github.com/wasmi-labs/wasmi/releases/tag/v0.31.1 Release Notes
https://github.com/wasmi-labs/wasmi/security/advisories/GHSA-75jp-vq8x-h4cq Vendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2024-28123), CISA KEV, FIRST EPSS (scores of 2026-09-28). This page is refreshed as NVD updates the record.