What is CVE-2021-46050?

CVE-2021-46050 is a medium-severity vulnerability in Webassembly Binaryen, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 5.5/10. Published 2022-01-10.

How severe is CVE-2021-46050?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Resource exhaustion in Webassembly Binaryen

CVE-2021-46050

A Stack Overflow vulnerability exists in Binaryen 103 via the printf_common function.

Published 2022-01-10 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.007 (50.4th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 50th percentile — 50.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000

Affected products

Webassembly Binaryen — versions 103

Weakness classification (CWE)

CWE-770 — Allocation of Resources Without Limits or Throttling

References

github.com/WebAssembly/binaryen/issues/4391 (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2021-46050?: CVE-2021-46050 is a medium-severity vulnerability in Webassembly Binaryen, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 5.5/10. Published 2022-01-10.
How severe is CVE-2021-46050?: Medium severity. CVSS v3 base score is 5.5 out of 10.