What’s Vulnerable › Vulnerabilities

CVE-2023-4751: Heap-based Buffer Overflow in vim/vim

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2023-09-03 · updated 2026-09-17
• Weakness: CWE-122

Description

Heap-based Buffer Overflow in GitHub repository vim/vim prior to 9.0.1331.

Affected products

• Apple macOS: 14.0
• Neovim: before 0.9.0 — fixed in 0.9.0
• vim/vim: before 9.0.1331 — fixed in 9.0.1331

How to fix

Upgrade to a fixed version: Neovim 0.9.0; vim/vim 9.0.1331. Check the vendor advisory for mitigations.

References

• http://seclists.org/fulldisclosure/2023/Oct/24
• https://github.com/vim/vim/commit/e1121b139480f53d1b06f84f3e4574048108fa0b
• https://huntr.dev/bounties/db7be8d6-6cb7-4ae5-9c4e-805423afa378
• https://support.apple.com/kb/HT213984
• http://seclists.org/fulldisclosure/2023/Oct/24
• https://github.com/vim/vim/commit/e1121b139480f53d1b06f84f3e4574048108fa0b
• https://huntr.dev/bounties/db7be8d6-6cb7-4ae5-9c4e-805423afa378
• https://support.apple.com/kb/HT213984

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