Vulnerability · Published Feb 27, 2026 · Assigned by GitHub_M
CVE-2026-28422Vim has stack-buffer-overflow in build_stl_str_hl()
Low 2.2
In plain English
A low-severity stack buffer overflow 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 6% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)2.2Low
Exploit odds (30 days)0.2%top 94.2% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Vim is an open source, command line text editor. Prior to version 9.2.0078, a stack-buffer-overflow occurs in `build_stl_str_hl()` when rendering a statusline with a multi-byte fill character on a very wide terminal. Version 9.2.0078 patches the issue.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine:v3.23 | vim | 9.2.0078-r0 | ALPINE-CVE-2026-28422 |
| Alpine:v3.24 | vim | 9.2.0078-r0 | ALPINE-CVE-2026-28422 |
| Debian:12 | vim | no fix listed | DEBIAN-CVE-2026-28422 |
| Debian:13 | vim | 2:9.1.1230-2+deb13u1 | DEBIAN-CVE-2026-28422 |
| Debian:14 | vim | 2:9.2.0119-1 | DEBIAN-CVE-2026-28422 |
| Ubuntu:22.04:LTS | vim | 2:8.2.3995-1ubuntu2.26 | UBUNTU-CVE-2026-28422 |
| Ubuntu:24.04:LTS | vim | 2:9.1.0016-1ubuntu7.10 | UBUNTU-CVE-2026-28422 |
| Ubuntu:25.10 | vim | 2:9.1.0967-1ubuntu6.1 | UBUNTU-CVE-2026-28422 |
| Ubuntu:26.04:LTS | vim | 2:9.1.2141-1ubuntu2 | UBUNTU-CVE-2026-28422 |
Affected products (as reported)
Weakness: CWE-121 · Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:N/I:L/A:N