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Fencer Intel
high 7.8

CVE-2022-3256 json

Use After Free in vim/vim

published 4y ago modified last mo. also EUVD-2022-42659

cvss
7.8
version 3.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.5%
EPSS 0.5% chance of exploitation in 30 days, percentile 42%
public exploits
0
none known

Summary

Use After Free in GitHub repository vim/vim prior to 9.0.0530.

Patch / fix

  • vim vim/vim 9.0.0530
  • vim Debian 14, Debian 13, Debian 12 2:9.0.0626-1

debian advisories DEBIAN-CVE-2022-3256

  • vim Ubuntu 20.04 LTS 2:8.1.2269-1ubuntu5.18
  • vim Ubuntu 22.04 LTS 2:8.2.3995-1ubuntu2.12
  • vim Ubuntu Pro 14.04 LTS 2:7.4.052-1ubuntu3.1+esm13
  • vim Ubuntu Pro 16.04 LTS 2:7.4.1689-3ubuntu1.5+esm14
  • vim Ubuntu Pro 18.04 LTS 2:8.0.1453-1ubuntu1.13+esm5

ubuntu advisories UBUNTU-CVE-2022-3256

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 Alpine 3.24, Alpine 3.23, Alpine 3.22 +5 more 9.0.0598-r0

alpine advisories ALPINE-CVE-2022-3256

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • vim CBL-Mariner 2.0 9.0.0614-1

azure linux advisories AZL-11003

Azure Linux vulnerability data, Copyright (c) Microsoft Corporation, from https://github.com/microsoft/AzureLinuxVulnerabilityData via OSV, under the MIT licence; changed: normalised to fixed package versions per release. MIT

  • vim Arch Linux 9.0.1225-1

arch linux advisories AVG-2843

Is CVE-2022-3256 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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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-2022-3256 updated cvss 7.8

vim: use-after-free in movemark() at mark.c

  • Red Hat Enterprise Linux 6 vim, vim-X11, vim-common, vim-minimal, vim-enhanced, vim-filesystem Red Hat Enterprise Linux 7 vim, vim-X11, vim-common, vim-minimal, vim-enhanced, vim-filesystem
    affected: workaround, no fix planned “Untrusted vim scripts with -s [scriptin] are not recommended to run.”
  • 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: workaround, no fix available “Untrusted vim scripts with -s [scriptin] are not recommended to run.”
  • 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
last yr.

Exploit prediction

0.49% chance of exploitation in the next 30 days, higher than 42% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • huntr.dev https://huntr.dev/bounties/8336a3df-212a-4f8d-ae34-76ef1f936bb3 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 Intel 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.