# RHSA-2021:4517: Security update for 5 packages

RHSA-2021:4517, released November 9, 2021, fixes 2 CVEs across 5 products. None of them is reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/fix/linux/rhsa-2021-4517
- Platform: Linux
- Released: Nov 9, 2021
- Priority: High (Closes CVE-2021-3796, high severity)
- CVEs: 2, exploited: 0, on CISA KEV: 0
- Vendor advisory: https://access.redhat.com/errata/RHSA-2021:4517

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [vim-X11](https://patchblox.com/security/data/product/linux/vim-x11.md) | RHEL 8 | 2:8.0.1763-16.el8 |
| [vim-common](https://patchblox.com/security/data/product/linux/vim-common.md) | RHEL 8 | 2:8.0.1763-16.el8 |
| [vim-enhanced](https://patchblox.com/security/data/product/linux/vim-enhanced.md) | RHEL 8 | 2:8.0.1763-16.el8 |
| [vim-filesystem](https://patchblox.com/security/data/product/linux/vim-filesystem.md) | RHEL 8 | 2:8.0.1763-16.el8 |
| [vim-minimal](https://patchblox.com/security/data/product/linux/vim-minimal.md) | RHEL 8 | 2:8.0.1763-16.el8 |

## CVEs this fix closes

| CVE | Priority | Title | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2021-3796](https://patchblox.com/security/data/cve/CVE-2021-3796.md) | High | vim-common: vim is vulnerable to Use After Free | 7.8 | 0.0174 |  |
| [CVE-2021-3778](https://patchblox.com/security/data/cve/CVE-2021-3778.md) | High | vim: vim is vulnerable to Heap-based Buffer Overflow | 7.8 | 0.0173 |  |

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Data as of 2026-11-07T12:40:37Z 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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo