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01 Record

CVE-2021-4193

Out-of-bounds Read in vim/vim

MediumPUBLISHEDCNA: @huntrdev
CNA base score5.5 CVSS v3.xCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
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02 Description

Out-of-bounds Read in vim/vim

03 Exploitation and scoring

Exploitation
Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision
Not assessed by CISA
EPSS probability
1.88% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 79.3% of scored records. A rank, not a probability.
NVD base score
5.5 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
NVD analysis status
Modified. NVD last modified this record on 2026-06-17.
Red Hat severity
Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2021-12-31 00:00Z4 YR AGO
Last updated
2024-08-03 17:16Z2 YR AGO
Reserved
2021-12-30
Assigning CNA
@huntrdev
Record state
PUBLISHED
Severity
Medium (CVSS 5.5)
CNA CVSS vector
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Weaknesses
Data version
5.1
Document digest
da2cee839c4c89434b2c96276f3e381084a794d5d3128ba5a019aded04572572

05 Affected products

VendorProductVersionsPlatforms
vimvim/vim< 8.2.3901—

06 References

07 Fixed in

AlmaLinux 8

  • vim-X11
    Fixed in 2:8.0.1763-16.el8_5.13
  • vim-common
    Fixed in 2:8.0.1763-16.el8_5.13
  • vim-enhanced
    Fixed in 2:8.0.1763-16.el8_5.13
  • vim-filesystem
    Fixed in 2:8.0.1763-16.el8_5.13
  • vim-minimal
    Fixed in 2:8.0.1763-16.el8_5.13

Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.

CloudLinux 8

  • vim-X11
    Fixed in 2:8.0.1763-16.el8_5.13
  • vim-common
    Fixed in 2:8.0.1763-16.el8_5.13
  • vim-enhanced
    Fixed in 2:8.0.1763-16.el8_5.13
  • vim-filesystem
    Fixed in 2:8.0.1763-16.el8_5.13
  • vim-minimal
    Fixed in 2:8.0.1763-16.el8_5.13

Derived from AlmaLinux 8. Partial coverage: only packages taken from AlmaLinux 8 are listed.

Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.

Debian 12

  • vim
    Fixed in 2:8.2.3995-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 13

  • vim
    Fixed in 2:8.2.3995-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 14

  • vim
    Fixed in 2:8.2.3995-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 18.04 LTS

  • vim
    Fixed in 2:8.0.1453-1ubuntu1.13

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 20.04 LTS

  • vim
    Fixed in 2:8.1.2269-1ubuntu5.14

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu Pro 14.04 LTS

  • vim
    Fixed in 2:7.4.052-1ubuntu3.1+esm9
    Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu Pro 16.04 LTS

  • vim
    Fixed in 2:7.4.1689-3ubuntu1.5+esm5
    Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.