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Fencer Vulns
high 7.8

CVE-2019-20079 json

The autocmd feature in window.c in Vim before 8.1.2136 accesses freed memory.

published 2019-12-30 6 y ago modified 2026-06-17 4 mo ago also EUVD-2019-10635

cvss
7.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.9%
EPSS 1.9% chance of exploitation in 30 days, percentile 79%
public exploits
0
none known

Summary

The autocmd feature in window.c in Vim before 8.1.2136 accesses freed memory.

Patch / fix

  • vim vim 8.1.2136
  • vim Debian 14, Debian 13, Debian 12 2:8.1.2136-1

debian advisories DEBIAN-CVE-2019-20079

  • vim Ubuntu 18.04 LTS 2:8.0.1453-1ubuntu1.3

ubuntu advisories UBUNTU-CVE-2019-20079

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

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-2019-20079 updated cvss 7.8

vim: Use after free in window.c

  • Red Hat Enterprise Linux 5 vim 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 Red Hat Enterprise Linux 8 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

Exploit prediction

1.89% chance of exploitation in the next 30 days, higher than 79% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD 2.0 6.8 AV:N/AC:M/Au:N/C:P/I:P/A:P

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.