Medium severity · published Aug 24, 2025
CVE-2025-9389
A vulnerability was identified in vim 9.1.0000
5.5
CVSS
0.2%
EPSS
No
On KEV
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".
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 13% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
VI
Vim · Vim
9.1.0000 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-9389
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-9389
Exploit
https://drive.google.com/file/d/1iFbTpW79vqBPkFjWYzGYIh_E6esPhYVY/view?usp=sharing
Exploit
https://github.com/vim/vim/issues/17940
Exploit
https://github.com/vim/vim/issues/17940#issuecomment-3203415781
Permissions Required
https://vuldb.com/?ctiid.321222
Third Party Advisory
https://vuldb.com/?id.321222
Exploit
https://vuldb.com/?submit.630898
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