CVE-2021-3778
Heap-based Buffer Overflow in vim/vim
02 Description
Heap-based Buffer Overflow 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
- 1.72% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 77.3% of scored records. A rank, not a probability.
- NVD base score
- 7.8 (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:H/A:H
- 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
- 2021-09-15 00:00Z5 YR AGO
- Last updated
- 2024-08-03 17:09Z2 YR AGO
- Reserved
- 2021-09-07
- Assigning CNA
- @huntrdev
- Record state
- PUBLISHED
- Severity
- High (CVSS 7.8)
- CNA CVSS vector
- CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- Weaknesses
- Data version
- 5.1
- Document digest
- ebbdb34a3d4d046d2844c6f492c831188bf82fedc1497a00b898c2105dda5b0d
05 Affected products
06 References
- huntr.devhttps://huntr.dev/bounties/d9c17308-2c99-4f9f-a706-f7f72c24c273
- github.comhttps://github.com/vim/vim/commit/65b605665997fad54ef39a93199e305af2fe4d7f
- www.openwall.com[oss-security] 20210930 3 new CVE's in vimhttp://www.openwall.com/lists/oss-security/2021/10/01/1
- lists.fedoraproject.orgFEDORA-2021-968f57ec98https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TE62UMYBZE4AE53K6OBBWK32XQ7544QM/
- lists.fedoraproject.orgFEDORA-2021-84f4cf3244https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/S42L4Z4DTW4LHLQ4FJ33VEOXRCBE7WN4/
- lists.fedoraproject.orgFEDORA-2021-6988830606https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7K4JJBIH3OQSZRVTWKCJCDLGMFGQ5DOH/
- lists.debian.org[debian-lts-announce] 20220110 [SECURITY] [DLA 2876-1] vim security updatehttps://lists.debian.org/debian-lts-announce/2022/01/msg00003.html
- security.gentoo.orgGLSA-202208-32https://security.gentoo.org/glsa/202208-32
- security.netapp.comhttps://security.netapp.com/advisory/ntap-20221118-0003/
07 Fixed in
AlmaLinux 8
- vim-X11 Fixed
A version is affected if any line below covers it.
- Affected before 2:8.0.1763-16.el8
- Affected before 2:8.0.1763-16.el8_5.13
- vim-common Fixed
A version is affected if any line below covers it.
- Affected before 2:8.0.1763-16.el8
- Affected before 2:8.0.1763-16.el8_5.13
- vim-enhanced Fixed
A version is affected if any line below covers it.
- Affected before 2:8.0.1763-16.el8
- Affected before 2:8.0.1763-16.el8_5.13
- vim-filesystem Fixed
A version is affected if any line below covers it.
- Affected before 2:8.0.1763-16.el8
- Affected before 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.
Arch Linux
- gvim Fixed in 8.2.3412-1
- vim Fixed in 8.2.3412-1
Source: Arch Linux Security Tracker, the Arch Linux security team. Reformatted by exploit.cc.
CloudLinux 8
- vim-X11 Fixed
A version is affected if any line below covers it.
- Affected before 2:8.0.1763-16.el8
- Affected before 2:8.0.1763-16.el8_5.13
- vim-common Fixed
A version is affected if any line below covers it.
- Affected before 2:8.0.1763-16.el8
- Affected before 2:8.0.1763-16.el8_5.13
- vim-enhanced Fixed
A version is affected if any line below covers it.
- Affected before 2:8.0.1763-16.el8
- Affected before 2:8.0.1763-16.el8_5.13
- vim-filesystem Fixed
A version is affected if any line below covers it.
- Affected before 2:8.0.1763-16.el8
- Affected before 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 2:8.2.3455-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- vim Fixed in 2:8.2.3455-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- vim Fixed in 2:8.2.3455-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 18.04 LTS
- vim Fixed in 2:8.0.1453-1ubuntu1.6
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 2:8.1.2269-1ubuntu5.3
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+esm3Available 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+esm2Available 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.