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CVE-2017-6349

31
FAUCET Score

CVE-2017-6349 describes an integer overflow vulnerability in Vim versions prior to patch 8.0.0377. This flaw occurs when Vim improperly validates tree length values during the reading of a corrupted undo file, potentially leading to buffer overflows. Rated 9.8 Critical (CVSSv3), this vulnerability is remotely exploitable with low attack complexity, allowing for high impact to confidentiality, integrity, and availability. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 8.0.0376CPE matchmatch criteria
cpe:2.3:a:vim:vim:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

9.8CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
2.74%
Probability of exploitation in next 30 days
EPSS Percentile
84.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0274 is in the 75th percentile among its peer group of 36,897 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

github_advisorypatch availablevia nvd_reference
View patch

Vendor Advisories (1)

redhatCVE-2017-6349Low

vim: Integer overflow at a u_read_undo memory allocation site

Feb 13, 2017

References

github.com / vim/vim/commit/3eb1637b1bba19519885dd6d377bd5596e91d22c
PatchThird Party Advisory
groups.google.com / forum
groups.google.com / forum
security.gentoo.org / glsa/201706-26
usn.ubuntu.com / 4309-1
securityfocus.com / bid/96451
securitytracker.com / id/1037949