CVE-2025-9389 – Vim Local Memory Corruption Vulnerability

The following table lists the changes that have been made to the
CVE-2025-9389 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution
of a vulnerability, and for identifying the most recent changes that may
impact the vulnerability’s severity, exploitability, or other characteristics.

  • New CVE Received
    by [email protected]

    Aug. 24, 2025

    Action Type Old Value New Value
    Added Description 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”.
    Added CVSS V4.0 AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
    Added CVSS V3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
    Added CVSS V2 (AV:L/AC:L/Au:S/C:N/I:N/A:P)
    Added CWE CWE-119
    Added Reference https://drive.google.com/file/d/1iFbTpW79vqBPkFjWYzGYIh_E6esPhYVY/view?usp=sharing
    Added Reference https://github.com/vim/vim/issues/17940
    Added Reference https://github.com/vim/vim/issues/17940#issuecomment-3203415781
    Added Reference https://vuldb.com/?ctiid.321222
    Added Reference https://vuldb.com/?id.321222
    Added Reference https://vuldb.com/?submit.630898
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