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Fencer Vulns
high 7.8

CVE-2022-3520 json

Heap-based Buffer Overflow in vim/vim

published 2022-12-02 3 y ago modified 2026-06-17 4 mo ago also EUVD-2022-42887

cvss
7.8
version 3.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
1.1%
EPSS 1.1% chance of exploitation in 30 days, percentile 65%
public exploits
0
none known

Summary

Heap-based Buffer Overflow in GitHub repository vim/vim prior to 9.0.0765.

Patch / fix

  • vim vim/vim 9.0.0765
  • vim Debian 14, Debian 13, Debian 12 2:9.0.0813-1

debian advisories DEBIAN-CVE-2022-3520

  • vim Ubuntu 20.04 LTS 2:8.1.2269-1ubuntu5.18
  • vim Ubuntu 22.04 LTS 2:8.2.3995-1ubuntu2.12

ubuntu advisories UBUNTU-CVE-2022-3520

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 SLES for SAP 12 SP5, SLES for SAP 12 SP4, SLES 12 SP5 +4 more 9.0.1234-17.12.1
  • vim SLES for SAP 15 SP3, SLES for SAP 15 SP2, SLES for SAP 15 SP1 +26 more 9.0.1040-150000.5.31.1

suse advisories SUSE-SU-2023:0209-1SUSE-SU-2022:4631-1

  • vim Alpine 3.15 8.2.4836-r1
  • vim Alpine 3.16 8.2.5000-r1

alpine advisories ALPINE-CVE-2022-3520

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

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-2022-3520 updated cvss 9.8

vim: Heap-based Buffer Overflow

  • 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
    not affected: vulnerable code not present

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
18 mo ago

Exploit prediction

1.09% chance of exploitation in the next 30 days, higher than 65% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • huntr.dev https://huntr.dev/bounties/c1db3b70-f4fe-481f-8a24-0b1449c94246 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 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/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.