# CVE-2026-57451: Vim: Out-of-bounds Read in Text Property Count

CVE-2026-57451 is fixed in 13 products on 1 platform, first by DEBIAN-CVE-2026-57451, released June 25, 2026. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2026-57451
- Priority: Routine
- CVSS: 6.1 (Moderate)
- EPSS: 0.0016
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Jun 25, 2026
- Weakness: Out-of-bounds Read
- Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-57451

## Description

Vim is an open source, command line text editor. Prior to 9.2.0670, get_text_props() in src/textprop.c reads a uint16 property count stored inline after a line's text and returns it as the number of 32-byte textprop_T entries that follow. The only check is a floor that guarantees room for a single entry; the count is never checked against the amount of data actually present. A line that declares a large count while carrying little data causes consumers to read far past the end of the line buffer. Such a line can be delivered through a crafted undo file, leading to a crash. This vulnerability is fixed in 9.2.0670.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | vim Debian 14 | 2:9.2.0782-1 | [DEBIAN-CVE-2026-57451](https://patchblox.com/security/data/fix/linux/debian-cve-2026-57451.md) | Jun 25, 2026 |
| Linux | vim-common amzn 2023 | 2:9.2.725-1.amzn2023.0.1 | [ALAS2023-2026-1940](https://patchblox.com/security/data/fix/linux/alas2023-2026-1940.md) | Jul 20, 2026 |
| Linux | vim-data amzn 2023 | 2:9.2.725-1.amzn2023.0.1 | [ALAS2023-2026-1940](https://patchblox.com/security/data/fix/linux/alas2023-2026-1940.md) | Jul 20, 2026 |
| Linux | vim-debuginfo amzn 2023 | 2:9.2.725-1.amzn2023.0.1 | [ALAS2023-2026-1940](https://patchblox.com/security/data/fix/linux/alas2023-2026-1940.md) | Jul 20, 2026 |
| Linux | vim-debugsource amzn 2023 | 2:9.2.725-1.amzn2023.0.1 | [ALAS2023-2026-1940](https://patchblox.com/security/data/fix/linux/alas2023-2026-1940.md) | Jul 20, 2026 |
| Linux | vim-default-editor amzn 2023 | 2:9.2.725-1.amzn2023.0.1 | [ALAS2023-2026-1940](https://patchblox.com/security/data/fix/linux/alas2023-2026-1940.md) | Jul 20, 2026 |
| Linux | vim-enhanced amzn 2023 | 2:9.2.725-1.amzn2023.0.1 | [ALAS2023-2026-1940](https://patchblox.com/security/data/fix/linux/alas2023-2026-1940.md) | Jul 20, 2026 |
| Linux | vim-enhanced-debuginfo amzn 2023 | 2:9.2.725-1.amzn2023.0.1 | [ALAS2023-2026-1940](https://patchblox.com/security/data/fix/linux/alas2023-2026-1940.md) | Jul 20, 2026 |
| Linux | vim-filesystem amzn 2023 | 2:9.2.725-1.amzn2023.0.1 | [ALAS2023-2026-1940](https://patchblox.com/security/data/fix/linux/alas2023-2026-1940.md) | Jul 20, 2026 |
| Linux | vim-minimal amzn 2023 | 2:9.2.725-1.amzn2023.0.1 | [ALAS2023-2026-1940](https://patchblox.com/security/data/fix/linux/alas2023-2026-1940.md) | Jul 20, 2026 |
| Linux | vim-minimal-debuginfo amzn 2023 | 2:9.2.725-1.amzn2023.0.1 | [ALAS2023-2026-1940](https://patchblox.com/security/data/fix/linux/alas2023-2026-1940.md) | Jul 20, 2026 |
| Linux | xxd amzn 2023 | 2:9.2.725-1.amzn2023.0.1 | [ALAS2023-2026-1940](https://patchblox.com/security/data/fix/linux/alas2023-2026-1940.md) | Jul 20, 2026 |
| Linux | xxd-debuginfo amzn 2023 | 2:9.2.725-1.amzn2023.0.1 | [ALAS2023-2026-1940](https://patchblox.com/security/data/fix/linux/alas2023-2026-1940.md) | Jul 20, 2026 |

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Data as of 2026-11-08T06:59:42Z 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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