What’s Vulnerable › Vulnerabilities
CVE-2023-0433: Heap-based Buffer Overflow in vim/vim
- Severity: high (CVSS 7.8 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.5% probability of exploitation in the next 30 days
- Public exploit or detection template: yes
- Published: 2023-01-21 · updated 2026-09-24
- Weakness: CWE-122
Description
Heap-based Buffer Overflow in GitHub repository vim/vim prior to 9.0.1225.
Affected products
- Apple macOS: before 11.7.5; from 12.0.0 before 12.6.4; from 13.0 before 13.3 — fixed in 11.7.5, 12.6.4, 13.3
- Fedoraproject Fedora: 36, 37
- Neovim: from 0.1.0 before 0.8.3 — fixed in 0.8.3
- vim/vim: before 9.0.1225 — fixed in 9.0.1225
How to fix
Upgrade to a fixed version: Apple macOS 11.7.5, 12.6.4, 13.3; Neovim 0.8.3; vim/vim 9.0.1225. Check the vendor advisory for mitigations.
References
- http://seclists.org/fulldisclosure/2023/Mar/17
- http://seclists.org/fulldisclosure/2023/Mar/18
- http://seclists.org/fulldisclosure/2023/Mar/21
- https://github.com/vim/vim/commit/11977f917506d950b7e0cae558bd9189260b253b
- https://huntr.dev/bounties/ae933869-a1ec-402a-bbea-d51764c6618e
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4EX6N2DB75A73MQGVW3CS4VTNPAYVM2M/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PZWIJBSQX53P7DHV77KRXJIXA4GH7XHC/
- https://support.apple.com/kb/HT213670
- https://support.apple.com/kb/HT213675
- https://support.apple.com/kb/HT213677
- http://seclists.org/fulldisclosure/2023/Mar/17
- http://seclists.org/fulldisclosure/2023/Mar/18
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