CVE-2021-32629

🗓️ 24 May 2021 15:35:11Reported by GitHub_MType

cve🔗 web.nvd.nist.gov📰️ 6 Media mentions👁 106 Views

Cranelift 0.73 x64 backend bug allows potential sandbox escape in Wasm program. Sign-extend instead of zero-extend creates memory access vulnerability

Reporter	Title	Published	Views	Family All 20
attackerkb	CVE-2021-32629	24 May 202116:15	–	attackerkb
CNNVD	Cranelift安全漏洞	24 May 202100:00	–	cnnvd
Cvelist	CVE-2021-32629 Memory access due to code generation flaw in Cranelift module	24 May 202115:35	–	cvelist
EUVD	EUVD-2021-0466	7 Oct 202500:30	–	euvd
Github Security Blog	Memory access due to code generation flaw in Cranelift module	25 Aug 202121:01	–	github
Mend	CVE-2021-32629	24 May 202115:35	–	mend
NVD	CVE-2021-32629	24 May 202116:15	–	nvd
OSV	GHSA-HPQH-2WQX-7QP5 Memory access due to code generation flaw in Cranelift module	25 Aug 202121:01	–	osv
OSV	OPENSUSE-SU-2024:10673-1 cargo-audit-advisory-db-20210802-1.2 on GA media	15 Jun 202400:00	–	osv
OSV	PYSEC-2021-87	24 May 202116:15	–	osv

NVD

Vulners

Node

bytecodealliance cranelift-codegenRange<0.73.1rust

[
  {
    "product": "wasmtime",
    "vendor": "bytecodealliance",
    "versions": [
      {
        "status": "affected",
        "version": "<= 0.73.0"
      }
    ]
  }
]

Source	Link
github	www.github.com/bytecodealliance/wasmtime/security/advisories/GHSA-hpqh-2wqx-7qp5
github	www.github.com/bytecodealliance/wasmtime/commit/95559c01aaa7c061088a433040f31e8291fb09d0
crates	www.crates.io/crates/cranelift-codegen
fastly	www.fastly.com/security-advisories/memory-access-due-to-code-generation-flaw-in-cranelift-module

17 Jun 2026 03:53Current

7.8High risk

Vulners AI Score7.8

CVSS 24.6

CVSS 3.17.2 - 8.8

EPSS0.00455

cranelift code generator bytecode alliance cve-2021-32629 security vulnerability wasm sandbox escape memory access