# Miscompilation of constant values in division on AArch64

Advisory record · `GHSA-7f6x-jwh5-m9r4`

- **Identifiers:** `GHSA-7f6x-jwh5-m9r4` · `CVE-2022-23636` · `CVE-2022-31169` · `GHSA-88xq-w8cq-xfg7` · `RUSTSEC-2022-0096` · `RUSTSEC-2022-0101`
- **State:** Confirmed
- **Severity:** CVSS 5.1 Medium
- **Critical:** No
- **Weakness (CWE):** [CWE-682](https://cwe.mitre.org/data/definitions/682.html) · [CWE-824](https://cwe.mitre.org/data/definitions/824.html)
- **Tags:** [Memory corruption](https://agentprime.io/advisories/tag/memory-corruption.md) · [CWE-682](https://agentprime.io/advisories/tag/cwe-682.md)
- **Published:** 5 Jul 2022
- **Updated:** 12 Oct 2026
- **Reviewed by a person:** No

Published by the GitHub Advisory Database at 5 Jul 2022, 12:00 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

## Affected packages

- `wasmtime` (crates.io): affected `>=0.0.0-0, <0.38.2`; fixed in `0.38.2`

## Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

> Wasmtime versions before 0.38.2 are affected by a miscompilation of constant values in division on AArch64. The source gives few details beyond the title and a pointer to the full advisory on GitHub. Upgrade wasmtime to version 0.38.2 or later.

Written 3 Nov 2026.

## Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

## Severity and exploitation

- 5.1 Medium, CVSS 3.1: `CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H`, from CNA (GitHub_M)

- **CISA KEV:** Not listed.
- **EPSS:** 0.0092, the 60th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

## Timeline

- 31 Oct 2026, 14:24 UTC: First seen by agentprime
- 31 Oct 2026, 14:24 UTC: [Confirmed by OSV](https://osv.dev/vulnerability/RUSTSEC-2022-0101)

## Sources

- [GitHub Advisory Database: GHSA-7f6x-jwh5-m9r4](https://github.com/advisories/GHSA-7f6x-jwh5-m9r4)
- [OSV: GHSA-7f6x-jwh5-m9r4](https://osv.dev/vulnerability/GHSA-7f6x-jwh5-m9r4)
- <https://crates.io/crates/wasmtime>
- <https://rustsec.org/advisories/RUSTSEC-2022-0101.html>
- <https://github.com/bytecodealliance/wasmtime/commit/2ba4bce5cc719e5a74e571a534424614e62ecc41>

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.

## Check whether this affects you

A Match means an installed version is in the affected range above. Most don’t affect the app; agentprime hasn’t analysed this one yet.

- With the agentprime MCP server (<https://api.agentprime.io/mcp>), ask your agent to check the project: `check_lockfile` sends a lockfile, `check_packages` a list of installed packages, and both return the Matches and the upgrades that clear them. `get_advisory` returns this record. Setup: <https://agentprime.io/mcp.md>
- In a browser: <https://agentprime.io/check/> reads your lockfile in the browser, never uploading it.
- Whether it touches your code, with file and line: the Claude Code plugin, <https://agentprime.io/plugin.md>
- As JSON: <https://api.agentprime.io/v1/advisories/GHSA-7f6x-jwh5-m9r4>, or `POST https://api.agentprime.io/v1/match` with your packages (<https://agentprime.io/api.md>)

---

The web page: <https://agentprime.io/advisories/GHSA-7f6x-jwh5-m9r4/>. Everything for agents: <https://agentprime.io/llms.txt>.