vulnerability
Ubuntu: USN-8101-1 (CVE-2026-25749): Vim vulnerabilities
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 6 | (AV:L/AC:M/Au:S/C:N/I:C/A:C) | Feb 6, 2026 | Mar 19, 2026 | Mar 27, 2026 |
Severity
6
CVSS
(AV:L/AC:M/Au:S/C:N/I:C/A:C)
Published
Feb 6, 2026
Added
Mar 19, 2026
Modified
Mar 27, 2026
Description
Vim is an open source, command line text editor. Prior to version 9.1.2132, a heap buffer overflow vulnerability exists in Vim's tag file resolution logic when processing the 'helpfile' option. The vulnerability is located in the get_tagfname() function in src/tag.c. When processing help file tags, Vim copies the user-controlled 'helpfile' option value into a fixed-size heap buffer of MAXPATHL + 1 bytes (typically 4097 bytes) using an unsafe STRCPY() operation without any bounds checking. This issue has been patched in version 9.1.2132.
Solution
ubuntu-pro-upgrade-vim
References
- CVE-2026-25749
- https://attackerkb.com/topics/CVE-2026-25749
- CWE-122
- EUVD-EUVD-2026-6930
- UBUNTU-USN-8101-1
- https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-6930
- https://github.com/vim/vim/releases/tag/v9.1.2132
- https://github.com/vim/vim/security/advisories/GHSA-5w93-4g67-mm43
- https://ubuntu.com/security/notices/USN-8101-1
- https://www.cve.org/CVERecord?id=CVE-2026-25749
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