Vulnerability/
https://seclists.org/oss-sec/2026/q4/580

https://seclists.org/oss-sec/2026/q4/580: [vim-security]: Heap Buffer Overflow with Crafted Spell File in Vim < 9.2.1309

Q: What must an attacker provide to trigger this issue?

The attacker must provide a crafted .spl spell file containing two SN_SOFO sections. The file can be loaded through a modeline, so opening a file can trigger the vulnerable spell-file parsing path.

Q: Does exploitation require the victim to explicitly install a spell file?

No explicit spell-file installation is described as necessary. A modeline can cause the crafted spell file to be loaded when the victim opens a file.

Published Nov 8, 2026

Updated

Affected Software

1 affected component

vim Vim<9.2.1309

Frequently Asked Questions

What must an attacker provide to trigger this issue?

The attacker must provide a crafted .spl spell file containing two SN_SOFO sections. The file can be loaded through a modeline, so opening a file can trigger the vulnerable spell-file parsing path.

Does exploitation require the victim to explicitly install a spell file?

No explicit spell-file installation is described as necessary. A modeline can cause the crafted spell file to be loaded when the victim opens a file.

Company

Resources

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co

By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.