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EUVD-2022-6282Published

Wasmtime is a standalone runtime for WebAssembly. There is a bug in Wasmtime's code generator, Cranelift, for AArch64 targets where constant divisors can result in incorrect division results at runtime. This affects Wasmtime prior to versio…

Exact source revision recorded 30 Oct 2026 20:46:34 UTC. It does not establish the source's current position. Latest evidence.

Recorded JSON

euvd · EUVD-2022-6282

Published

Wasmtime is a standalone runtime for WebAssembly. There is a bug in Wasmtime's code generator, Cranelift, for AArch64 targets where constant divisors can result in incorrect division results at runtime. This affects Wasmtime prior to version 0.38.2 and Cranelift prior to 0.85.2. This issue only affects the AArch64 platform. Other platforms are not affected. The translation rules for constants did not take into account whether sign or zero-extension should happen which resulted in an incorrect value being placed into a register when a division was encountered. The impact of this bug is that programs executing within the WebAssembly sandbox would not behave according to the WebAssembly specification. This means that it is hypothetically possible for execution within the sandbox to go awry and WebAssembly programs could produce unexpected results. This should not impact hosts executing WebAssembly but does affect the correctness of guest programs. This bug has been patched in Wasmtime version 0.38.2 and cranelift-codegen 0.85.2. There are no known workarounds.

EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON.

Original publisher date fields

datePublished: Jul 21, 2022, 1:50:11 PM

dateUpdated: Apr 23, 2025, 5:57:39 PM

1 related source bulletins · separate from aliases

msrc_CVE-2022-31169: Cranelift vulnerable to miscompilation of constant values in division on AArch64

CVE-2022-31169

Source published
Jul 21, 2022, 1:50:11 PM (timezone not stated)
Source modified
Apr 23, 2025, 5:57:39 PM (timezone not stated)
Observed here
30 Oct 2026 20:46:34 UTC
Source terms
ENISA EUVD · source terms and attribution apply

Original source record · Cite this exact observation · Complete original publisher JSON

This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: euvd · ENISA EUVD · source terms and attribution apply. Source text is retained; field grouping and change labels are provided by ChangeIntel.

EUVD CVSS 3.1 · 5.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N

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Sources read 10 Nov 11:34 UTC · 275 of 275 readable · 273 fully read · documentation 469/469 current

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