Vulnerability · Published Feb 27, 2026 · Assigned by GitHub_M
CVE-2026-28419Vim has Heap-based Buffer Underflow in Emacs tags parsing
Medium 5.3
In plain English
A medium-severity out-of-bounds read in vim from vim. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 9% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
Vim is an open source, command line text editor. Prior to version 9.2.0075, a heap-based buffer underflow exists in Vim's Emacs-style tags file parsing logic. When processing a malformed tags file where a delimiter appears at the start of a line, Vim attempts to read memory immediately preceding the allocated buffer. Version 9.2.0075 fixes the issue.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine:v3.23 | vim | 9.2.0078-r0 | ALPINE-CVE-2026-28419 |
| Alpine:v3.24 | vim | 9.2.0078-r0 | ALPINE-CVE-2026-28419 |
| Debian:12 | vim | no fix listed | DEBIAN-CVE-2026-28419 |
| Debian:13 | vim | 2:9.1.1230-2+deb13u1 | DEBIAN-CVE-2026-28419 |
| Debian:14 | vim | 2:9.2.0119-1 | DEBIAN-CVE-2026-28419 |
| Ubuntu:22.04:LTS | vim | 2:8.2.3995-1ubuntu2.26 | UBUNTU-CVE-2026-28419 |
| Ubuntu:24.04:LTS | vim | 2:9.1.0016-1ubuntu7.10 | UBUNTU-CVE-2026-28419 |
| Ubuntu:25.10 | vim | 2:9.1.0967-1ubuntu6.1 | UBUNTU-CVE-2026-28419 |
| Ubuntu:26.04:LTS | vim | 2:9.1.2141-1ubuntu2 | UBUNTU-CVE-2026-28419 |
Affected products (as reported)
Weakness: CWE-124, CWE-125 · Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L