CVE-2021-46055

Name: CVE-2021-46055
Creator: NVD / NIST
Published: 2022-01-10T14:11:22.887+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.5/10EPSS 0.70%

Last modified Jun 17, 2026

CVE-2021-46055 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. A Denial of Service vulnerability exists in Binaryen 104 due to an assertion abort in wasm::WasmBinaryBuilder::visitRethrow(wasm::Rethrow*).. EPSS estimates a 0.70% chance of exploitation in the next 30 days.

Description

A Denial of Service vulnerability exists in Binaryen 104 due to an assertion abort in wasm::WasmBinaryBuilder::visitRethrow(wasm::Rethrow*).

Metrics

CVSS 3.1

5.5/10

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

EPSS Probability

0.70%

48.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-617

Affected Software

Vendor	Product	Versions
Webassembly	Binaryen	104

References

https://github.com/WebAssembly/binaryen/issues/4413Exploit, Third Party Advisory
https://github.com/WebAssembly/binaryen/issues/4413Exploit, Third Party Advisory

Timeline

Published: Jan 10, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-46055?

A Denial of Service vulnerability exists in Binaryen 104 due to an assertion abort in wasm::WasmBinaryBuilder::visitRethrow(wasm::Rethrow*).

How severe is CVE-2021-46055?

CVE-2021-46055 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 0.70% probability of exploitation in the next 30 days.

How do I fix CVE-2021-46055?

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-2021-46055?

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

Scan your code now

Source: NVD / NIST