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Fencer Vulns
high 7.8

CVE-2023-4751 json

Heap-based Buffer Overflow in vim/vim

published 2023-09-03 3 y ago modified 2026-09-17 52 d ago also EUVD-2023-54599

cvss
7.8
version 3.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.6%
EPSS 0.6% chance of exploitation in 30 days, percentile 47%
public exploits
0
none known

Summary

Heap-based Buffer Overflow in GitHub repository vim/vim prior to 9.0.1331.

Patch / fix

  • vim vim/vim 9.0.1331
  • vim Debian 14, Debian 13 2:9.0.1894-1

debian advisories DEBIAN-CVE-2023-4751

  • vim Ubuntu 20.04 LTS 2:8.1.2269-1ubuntu5.20
  • vim Ubuntu 22.04 LTS 2:8.2.3995-1ubuntu2.13
  • vim Ubuntu Pro 14.04 LTS 2:7.4.052-1ubuntu3.1+esm14
  • vim Ubuntu Pro 16.04 LTS 2:7.4.1689-3ubuntu1.5+esm20
  • vim Ubuntu Pro 18.04 LTS 2:8.0.1453-1ubuntu1.13+esm6

ubuntu advisories UBUNTU-CVE-2023-4751

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • vim openSUSE Tumbleweed 9.0.1894-1.1

opensuse advisories openSUSE-SU-2024:13226-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2023-4751 updated cvss 7.8

vim: heap-buffer-overflow in function utfc_ptr2len in vim/vim

  • Red Hat Enterprise Linux 8 vim, vim-X11, vim-common, vim-minimal, vim-enhanced, vim-filesystem Red Hat Enterprise Linux 9 vim, vim-X11, vim-common, vim-minimal, vim-enhanced, vim-filesystem
    affected: no fix available “Fix deferred”
  • Red Hat OpenShift AI (RHOAI) rhoai/odh-dashboard-rhel9
    under investigation

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
Proof of concept is public
Automatable
no
Technical impact
total
Assessed
2 y ago

Exploit prediction

0.56% chance of exploitation in the next 30 days, higher than 47% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • huntr.dev https://huntr.dev/bounties/db7be8d6-6cb7-4ae5-9c4e-805423afa378 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 3.0 7.8 CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD 3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected products

  • vim vim/vim

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.