🛡️ CVE-2022-1621 — debian-linux

🟠 CVSS 7.8 — High ⚠️ Exploit Public CWE-122 NVD
7.8
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

Heap buffer overflow in vim_strncpy find_word in GitHub repository vim/vim prior to 8.2.4919. This vulnerability is capable of crashing software, Bypass Protection Mechanism, Modify Memory, and possible remote execution

How this vulnerability can be exploited

This issue can be reached with local access to the system, attack complexity is low, an attacker needs no privileges on the target. A user must be tricked into taking some action. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality high, integrity high, availability high.

Weakness class

CVE-2022-1621 is classified as CWE-122: Heap-based Buffer Overflow. A write past the end of a heap allocation corrupts allocator metadata or neighbouring objects.

Affected software

CVE-2022-1621 is recorded against 4 packages.

  • debian-linux
  • fedora
  • macos (fixed in 13.0)
  • vim (fixed in 8.2.4919)

Timeline and source

Published on 10 May 2022 and last revised on 17 June 2026. A public exploit is known to exist, which raises the urgency of patching considerably. A vendor advisory or fix has been published. Record sourced from NVD.

References

seclists.org
seclists.org
github.com
huntr.dev
lists.debian.org
lists.debian.org
lists.fedoraproject.org
security.gentoo.org
security.gentoo.org
support.apple.com
seclists.org
seclists.org
github.com
huntr.dev
lists.debian.org

CVE-2022-1621 on other distributions

Each distribution ships its own build and its own fixed version. Pick the one you run:

Details

Severity HIGH
CVSS Score 7.8
CVSS Vector CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CWE CWE-122
Public Exploit ⚠️ Yes
Source NVD
Published 2022-05-10
Updated 2026-08-11
Modified 2026-06-17

Affected Packages

Software From version Fixed in
debian-linux
fedora
macos 13.0
vim 8.2.4919

References

Mailing List, Third Party Advisory http://seclists.org/fulldisclosure/2022/Oct/28
Mailing List, Third Party Advisory http://seclists.org/fulldisclosure/2022/Oct/41
Mailing List, Third Party Advisory http://seclists.org/fulldisclosure/2022/Oct/28
Mailing List, Third Party Advisory http://seclists.org/fulldisclosure/2022/Oct/41

Similar Threats

Exploit Protection

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