What’s Vulnerable › Vulnerabilities

CVE-2023-4734: Integer Overflow or Wraparound 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: 2023-09-02 · updated 2026-09-18
• Weakness: CWE-190

Description

Integer Overflow or Wraparound in GitHub repository vim/vim prior to 9.0.1846.

Affected products

• Apple macOS: before 14.1 — fixed in 14.1
• Neovim: from 0.7.0 before 0.10.0 — fixed in 0.10.0
• vim/vim: before 9.0.1846 — fixed in 9.0.1846

How to fix

Upgrade to a fixed version: Apple macOS 14.1; Neovim 0.10.0; vim/vim 9.0.1846. Check the vendor advisory for mitigations.

References

• http://seclists.org/fulldisclosure/2023/Oct/24
• https://github.com/vim/vim/commit/4c6fe2e2ea62469642ed1d80b16d39e616b25cf5
• https://huntr.dev/bounties/688e4382-d2b6-439a-a54e-484780f82217
• https://support.apple.com/kb/HT213984
• http://seclists.org/fulldisclosure/2023/Oct/24
• https://github.com/vim/vim/commit/4c6fe2e2ea62469642ed1d80b16d39e616b25cf5
• https://huntr.dev/bounties/688e4382-d2b6-439a-a54e-484780f82217
• https://support.apple.com/kb/HT213984

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