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CVE-2021-39216

🗓️ 17 Sep 2021 20:05:11Reported by MendType 
mend
 mend
🔗 www.mend.io👁 1 Views

Use-after-free in Wasmtime when passing multiple externrefs from host to guest Wasm.

Related
Detection
Refs
ReporterTitlePublishedViews
Family
attackerkb
attackerkb
CVE-2021-39216
17 Sep 202120:15
–attackerkb
attackerkb
attackerkb
CVE-2021-39218
17 Sep 202121:15
–attackerkb
circl
Circl
CVE-2021-39216
18 Sep 202100:23
–circl
circl
Circl
CVE-2021-39218
18 Sep 202100:23
–circl
cnnvd
CNNVD
Wasmtime 资源管理错误漏洞
17 Sep 202100:00
–cnnvd
cnnvd
CNNVD
Wasmtime 缓冲区错误漏洞
17 Sep 202100:00
–cnnvd
cve
CVE
CVE-2021-39216
17 Sep 202120:05
–cve
cve
CVE
CVE-2021-39218
17 Sep 202120:10
–cve
cvelist
Cvelist
CVE-2021-39216 Use after free passing `externref`s to Wasm in Wasmtime
17 Sep 202120:05
–cvelist
cvelist
Cvelist
CVE-2021-39218 Out-of-bounds read/write and invalid free with `externref`s and GC safepoints in Wasmtime
17 Sep 202120:10
–cvelist
Rows per page
Vulners
Node
OR
bytecodealliancewasmtimeRange0.0.1–0.30.0
bytecodealliancewasmtimeRange0.0.0–0.30.0

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06 Oct 2026 02:40Current
CVSS 23.3
CVSS 45.8
CVSS 3.16.3
EPSS0.00307
1