# CVE-2021-4166: vim: vim is vulnerable to Out-of-bounds Read

CVE-2021-4166 is fixed in 20 products on 1 platform, first by DEBIAN-CVE-2021-4166, released December 25, 2021. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2021-4166
- Priority: High
- CVSS: 7.1 (high)
- EPSS: 0.0170
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Dec 25, 2021

## Description

vim is vulnerable to Out-of-bounds Read

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | vim Debian 12.15 (bookworm) | 2:8.2.3995-1 | [DEBIAN-CVE-2021-4166](https://patchblox.com/security/data/fix/linux/debian-cve-2021-4166.md) | Dec 25, 2021 |
| Linux | vim Debian 13.5 (trixie) | 2:8.2.3995-1 | [DEBIAN-CVE-2021-4166](https://patchblox.com/security/data/fix/linux/debian-cve-2021-4166.md) | Dec 25, 2021 |
| Linux | vim Debian 14 | 2:8.2.3995-1 | [DEBIAN-CVE-2021-4166](https://patchblox.com/security/data/fix/linux/debian-cve-2021-4166.md) | Dec 25, 2021 |
| Linux | vim Ubuntu 20.04 LTS (focal) | 2:8.1.2269-1ubuntu5.14 | [vim 2:8.1.2269-1ubuntu5.14](https://patchblox.com/security/data/fix/linux/ubuntu-focal-vim-2-8.1.2269-1ubuntu5.14.md) | Jun 27, 2022 |
| Linux | vim-athena Ubuntu 20.04 LTS (focal) | 2:8.1.2269-1ubuntu5.14 | [vim-athena 2:8.1.2269-1ubuntu5.14](https://patchblox.com/security/data/fix/linux/ubuntu-focal-vim-athena-2-8.1.2269-1ubuntu5.14.md) | Jun 27, 2022 |
| Linux | vim-common Ubuntu 20.04 LTS (focal) | 2:8.1.2269-1ubuntu5.14 | [vim-common 2:8.1.2269-1ubuntu5.14](https://patchblox.com/security/data/fix/linux/ubuntu-focal-vim-common-2-8.1.2269-1ubuntu5.14.md) | Jun 27, 2022 |
| Linux | vim-common amzn 2023 | 2:9.0.1160-1.amzn2023.0.2 | [ALAS2023-2023-098](https://patchblox.com/security/data/fix/linux/alas2023-2023-098.md) | Feb 17, 2023 |
| Linux | vim-common-debuginfo amzn 2023 | 2:9.0.1160-1.amzn2023.0.2 | [ALAS2023-2023-098](https://patchblox.com/security/data/fix/linux/alas2023-2023-098.md) | Feb 17, 2023 |
| Linux | vim-data amzn 2023 | 2:9.0.1160-1.amzn2023.0.2 | [ALAS2023-2023-098](https://patchblox.com/security/data/fix/linux/alas2023-2023-098.md) | Feb 17, 2023 |
| Linux | vim-debuginfo amzn 2023 | 2:9.0.1160-1.amzn2023.0.2 | [ALAS2023-2023-098](https://patchblox.com/security/data/fix/linux/alas2023-2023-098.md) | Feb 17, 2023 |
| Linux | vim-debugsource amzn 2023 | 2:9.0.1160-1.amzn2023.0.2 | [ALAS2023-2023-098](https://patchblox.com/security/data/fix/linux/alas2023-2023-098.md) | Feb 17, 2023 |
| Linux | vim-default-editor amzn 2023 | 2:9.0.1160-1.amzn2023.0.2 | [ALAS2023-2023-098](https://patchblox.com/security/data/fix/linux/alas2023-2023-098.md) | Feb 17, 2023 |
| Linux | vim-enhanced amzn 2023 | 2:9.0.1160-1.amzn2023.0.2 | [ALAS2023-2023-098](https://patchblox.com/security/data/fix/linux/alas2023-2023-098.md) | Feb 17, 2023 |
| Linux | vim-enhanced-debuginfo amzn 2023 | 2:9.0.1160-1.amzn2023.0.2 | [ALAS2023-2023-098](https://patchblox.com/security/data/fix/linux/alas2023-2023-098.md) | Feb 17, 2023 |
| Linux | vim-filesystem amzn 2023 | 2:9.0.1160-1.amzn2023.0.2 | [ALAS2023-2023-098](https://patchblox.com/security/data/fix/linux/alas2023-2023-098.md) | Feb 17, 2023 |
| Linux | vim-gtk Ubuntu 20.04 LTS (focal) | 2:8.1.2269-1ubuntu5.14 | [vim-gtk 2:8.1.2269-1ubuntu5.14](https://patchblox.com/security/data/fix/linux/ubuntu-focal-vim-gtk-2-8.1.2269-1ubuntu5.14.md) | Jun 27, 2022 |
| Linux | vim-gtk3 Ubuntu 20.04 LTS (focal) | 2:8.1.2269-1ubuntu5.14 | [vim-gtk3 2:8.1.2269-1ubuntu5.14](https://patchblox.com/security/data/fix/linux/ubuntu-focal-vim-gtk3-2-8.1.2269-1ubuntu5.14.md) | Jun 27, 2022 |
| Linux | vim-gui-common Ubuntu 20.04 LTS (focal) | 2:8.1.2269-1ubuntu5.14 | [vim-gui-common 2:8.1.2269-1ubuntu5.14](https://patchblox.com/security/data/fix/linux/ubuntu-focal-vim-gui-common-2-8.1.2269-1ubuntu5.14.md) | Jun 27, 2022 |
| Linux | vim-minimal amzn 2023 | 2:9.0.1160-1.amzn2023.0.2 | [ALAS2023-2023-098](https://patchblox.com/security/data/fix/linux/alas2023-2023-098.md) | Feb 17, 2023 |
| Linux | vim-minimal-debuginfo amzn 2023 | 2:9.0.1160-1.amzn2023.0.2 | [ALAS2023-2023-098](https://patchblox.com/security/data/fix/linux/alas2023-2023-098.md) | Feb 17, 2023 |
| Linux | vim-nox Ubuntu 20.04 LTS (focal) | 2:8.1.2269-1ubuntu5.14 | [vim-nox 2:8.1.2269-1ubuntu5.14](https://patchblox.com/security/data/fix/linux/ubuntu-focal-vim-nox-2-8.1.2269-1ubuntu5.14.md) | Jun 27, 2022 |
| Linux | vim-runtime Ubuntu 20.04 LTS (focal) | 2:8.1.2269-1ubuntu5.14 | [vim-runtime 2:8.1.2269-1ubuntu5.14](https://patchblox.com/security/data/fix/linux/ubuntu-focal-vim-runtime-2-8.1.2269-1ubuntu5.14.md) | Jun 27, 2022 |
| Linux | vim-tiny Ubuntu 20.04 LTS (focal) | 2:8.1.2269-1ubuntu5.14 | [vim-tiny 2:8.1.2269-1ubuntu5.14](https://patchblox.com/security/data/fix/linux/ubuntu-focal-vim-tiny-2-8.1.2269-1ubuntu5.14.md) | Jun 27, 2022 |
| Linux | xxd Ubuntu 20.04 LTS (focal) | 2:8.1.2269-1ubuntu5.14 | [xxd 2:8.1.2269-1ubuntu5.14](https://patchblox.com/security/data/fix/linux/ubuntu-focal-xxd-2-8.1.2269-1ubuntu5.14.md) | Jun 27, 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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