CVE-2025-9389

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 v3.1 Score

3.3

LOW

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

Weakness Type (CWE)

CWE-119 Buffer Overflow

CWE-787 Out-of-bounds Write

Affected Products

Vendor	Product	Versions
vim	vim	All

References

Advisories & Patches

https://github.com/vim/vim/issues/17940 https://github.com/vim/vim/issues/17940#issuecomment-3203415781 https://github.com/vim/vim/issues/17940 https://github.com/vim/vim/issues/17940#issuecomment-3203415781

Exploits

https://drive.google.com/file/d/1iFbTpW79vqBPkFjWYzGYIh_E6esPhYVY/view?usp=sharing https://github.com/vim/vim/issues/17940 https://github.com/vim/vim/issues/17940#issuecomment-3203415781 https://vuldb.com/?submit.630898 https://github.com/vim/vim/issues/17940 https://github.com/vim/vim/issues/17940#issuecomment-3203415781 https://vuldb.com/?submit.630898

Other References

https://vuldb.com/?ctiid.321222 https://vuldb.com/?id.321222

Frequently Asked Questions

What is CVE-2025-9389? +

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". It has a CVSS v3.1 base score of 3.3 (LOW).

How severe is CVE-2025-9389? +

CVE-2025-9389 has a CVSS v3.1 score of 3.3 out of 10, rated LOW. This is a low-severity vulnerability with limited impact.

What products are affected by CVE-2025-9389? +

CVE-2025-9389 affects products from vim, specifically: vim. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-9389? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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