CVE-2017-6349

9.8 criticalEPSS 2.7%

Critical (9.8) in vim vim. EPSS 2.7% chance of exploitation in the next 30 days.

An integer overflow at a u_read_undo memory allocation site would occur for vim before patch 8.0.0377, if it does not properly validate values for tree length when reading a corrupted undo file, which may lead to resultant buffer overflows.

Severity

CVSS 3.0

9.8 critical

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS: 2.7% chance of exploitation in the next 30 days; higher than 86% of CVEs (scores of 2026-10-31)
CWE: CWE-190
Published: 2017-02-27
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

vim:vim

References

http://www.securityfocus.com/bid/96451
http://www.securitytracker.com/id/1037949
https://github.com/vim/vim/commit/3eb1637b1bba19519885dd6d377bd5596e91d22c
https://groups.google.com/forum/#%21topic/vim_dev/LAgsTcdSfNA
https://groups.google.com/forum/#%21topic/vim_dev/QPZc0CY9j3Y

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