Bug 2437843 (CVE-2026-25749) - CVE-2026-25749 vim: Vim: Arbitrary code execution via 'helpfile' option processing
Summary: CVE-2026-25749 vim: Vim: Arbitrary code execution via 'helpfile' option proce...
Keywords:
Status: NEW
Alias: CVE-2026-25749
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On: 2438247
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-02-09 11:09 UTC by OSIDB Bzimport
Modified: 2026-03-05 18:06 UTC (History)
8 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:

Attachments (Terms of Use)

Description OSIDB Bzimport 2026-02-09 11:09:21 UTC 
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.
Comment 2 naresh.sukhija 2026-02-20 12:32:16 UTC 
Hi,

Is someone looking into this Security Vulnerability ?

Regards,
Naresh
Note You need to log in before you can comment on or make changes to this bug.