# CVE-2022-1071: mruby: User after free in mrb_vm_exec in GitHub repository mruby/mruby prior to 3.2.

CVE-2022-1071 is fixed in mruby on 1 platform, first by DEBIAN-CVE-2022-1071, released March 26, 2022. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2022-1071
- Priority: High
- CVSS: 8.2 (high)
- EPSS: 0.0092
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Mar 26, 2022

## Description

User after free in mrb_vm_exec in GitHub repository mruby/mruby prior to 3.2.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | mruby Debian 12.15 (bookworm) | 3.1.0-1 | [DEBIAN-CVE-2022-1071](https://patchblox.com/security/data/fix/linux/debian-cve-2022-1071.md) | Mar 26, 2022 |
| Linux | mruby Debian 13.5 (trixie) | 3.1.0-1 | [DEBIAN-CVE-2022-1071](https://patchblox.com/security/data/fix/linux/debian-cve-2022-1071.md) | Mar 26, 2022 |
| Linux | mruby Debian 14 | 3.1.0-1 | [DEBIAN-CVE-2022-1071](https://patchblox.com/security/data/fix/linux/debian-cve-2022-1071.md) | Mar 26, 2022 |

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Data as of 2026-11-08T00:53:09Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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