CVE-2025-27423

Description

Vim is an open source, command line text editor. Vim is distributed with the tar.vim plugin, that allows easy editing and viewing of (compressed or uncompressed) tar files. Starting with 9.1.0858, the tar.vim plugin uses the ":read" ex command line to append below the cursor position, however the is not sanitized and is taken literally from the tar archive. This allows to execute shell commands via special crafted tar archives. Whether this really happens, depends on the shell being used ('shell' option, which is set using $SHELL). The issue has been fixed as of Vim patch v9.1.1164

How to fix CVE-2025-27423

To remediate CVE-2025-27423, upgrade the affected package to a fixed version below.

• —upgrade to 9.1.1164-r0 or later
• —upgrade to 2:9.1.1230-1 or later

Is CVE-2025-27423 being exploited?

Low — EPSS is 2.1%, meaning exploitation activity has not been observed at scale.

Affected packages (2)

• from 0, < 9.1.1164-r0
• from 0, < 2:9.1.1230-1

CVSS scores

References (2)

• ADVISORYsecurity.alpinelinux.org/vuln/CVE-2025-27423
• ADVISORYsecurity-tracker.debian.org/tracker/CVE-2025-27423