CVE-2025-9389 MEDIUM

CVE-2025-9389: vim memmove-vec-unaligned-erms.S __memmove_avx_unaligned_erms memory corruption

Vendor N/A
Product vim
Weakness CWE-119
Published August 24, 2025
Last update August 25, 2025

CVSS base score

4.8/10
Attack vector Local
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality
Integrity

CVSS vector

CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P

What the vulnerability does

01Description

A vulnerability was identified in vim 9.1.0000. Affected is the function __memmove_avx_unaligned_erms of the file memmove-vec-unaligned-erms.S. The manipulation leads to memory corruption. The attack needs to be performed locally. The exploit is publicly available and might be used. Some users are not able to reproduce this. One of the users mentions that this appears not to be working, "when coloring is turned on".

Key dates

02Disclosure timeline

August 24, 2025 CVE published
August 25, 2025 Record updated