CVE-2021-4166
vim: out-of-bounds read in do_arg_all() in src/arglist.c
Severity
LowRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · December 25, 2021
Updated · October 9, 2026
Description
A flaw was found in vim. A possible heap-based buffer overflow could allow an attacker to input a specially crafted file leading to a crash or code execution.
Statement
Red Hat Product Security has rated this issue as having a Low security impact, because the "victim" has to run an untrusted file IN SCRIPT MODE. Someone who is running untrusted files in script mode is equivalent to someone just taking a random python script and running it.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.1 · 7.1CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H
CWE-125 · Out-of-bounds Read