CVE-2024-30266

Name: CVE-2024-30266
Creator: NVD / NIST
Published: 2024-04-04T16:15:09.107+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.5/10EPSS 0.32%

Last modified Jun 17, 2026

CVE-2024-30266 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. wasmtime is a runtime for WebAssembly. The 19.0.0 release of Wasmtime contains a regression introduced during its development which can lead to a guest WebAssembly module causing a panic in the host runtime. EPSS estimates a 0.32% chance of exploitation in the next 30 days.

Description

wasmtime is a runtime for WebAssembly. The 19.0.0 release of Wasmtime contains a regression introduced during its development which can lead to a guest WebAssembly module causing a panic in the host runtime. A valid WebAssembly module, when executed at runtime, may cause this panic. This vulnerability has been patched in version 19.0.1.

Metrics

CVSS 3.1

5.5/10

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

EPSS Probability

0.32%

23.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-843

Affected Software

Vendor	Product	Versions
Bytecodealliance	Wasmtime	19.0.0

References

https://github.com/bytecodealliance/wasmtime/commit/7f57d0bb0948fa56cc950278d0db230ed10e8664Patch
https://github.com/bytecodealliance/wasmtime/issues/8281Exploit, Issue Tracking
https://github.com/bytecodealliance/wasmtime/pull/8018Patch
https://github.com/bytecodealliance/wasmtime/pull/8283Patch
https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-75hq-h6g9-h4q5Mitigation, Third Party Advisory
https://github.com/bytecodealliance/wasmtime/commit/7f57d0bb0948fa56cc950278d0db230ed10e8664Patch
https://github.com/bytecodealliance/wasmtime/issues/8281Exploit, Issue Tracking
https://github.com/bytecodealliance/wasmtime/pull/8018Patch
https://github.com/bytecodealliance/wasmtime/pull/8283Patch
https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-75hq-h6g9-h4q5Mitigation, Third Party Advisory

Timeline

Published: Apr 4, 2024
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2024-30266?

How severe is CVE-2024-30266?

CVE-2024-30266 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 0.32% probability of exploitation in the next 30 days.

How do I fix CVE-2024-30266?

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-2024-30266?

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

Scan your code now

Source: NVD / NIST