{"id":"CVE-2023-48706","title":"Vim is a UNIX editor that, prior to version 9.0.2121, has a heap-use-after-free vulnerability","summary":"Vim is a UNIX editor that, prior to version 9.0.2121, has a heap-use-after-free vulnerability. When executing a `:s` command for the very first time and using a sub-replace-special atom inside the substitution part, it is possible that t…","severity":"low","cvss":3.6,"cvssVector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:L","cwe":["CWE-416"],"vendor":"neovim","product":"neovim","affected":["fedora = 38","fedora = 39","hci_compute_node","neovim <= 0.9.5","vim < 9.0.2121"],"patched":["vim 9.0.2121"],"published":"2023-11-22","updated":"2026-09-17","sourceUpdated":"2026-09-17T17:59:18.660","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2023-48706","references":[{"url":"http://www.openwall.com/lists/oss-security/2023/11/22/3","label":"security-advisories@github.com"},{"url":"https://github.com/gandalf4a/crash_report/blob/main/vim/vim_huaf","label":"security-advisories@github.com"},{"url":"https://github.com/vim/vim/commit/26c11c56888d01e298cd8044caf860f3c26f57bb","label":"security-advisories@github.com"},{"url":"https://github.com/vim/vim/pull/13552","label":"security-advisories@github.com"},{"url":"https://github.com/vim/vim/security/advisories/GHSA-c8qm-x72m-q53q","label":"security-advisories@github.com"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/DNMFS3IH74KEMMESOA3EOB6MZ56TWGFF/","label":"security-advisories@github.com"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/IVA7K73WHQH4KVFDJQ7ELIUD2WK5ZT5E/","label":"security-advisories@github.com"},{"url":"https://security.netapp.com/advisory/ntap-20240105-0001/","label":"security-advisories@github.com"},{"url":"http://www.openwall.com/lists/oss-security/2023/11/22/3","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/gandalf4a/crash_report/blob/main/vim/vim_huaf","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/vim/vim/commit/26c11c56888d01e298cd8044caf860f3c26f57bb","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/vim/vim/pull/13552","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/vim/vim/security/advisories/GHSA-c8qm-x72m-q53q","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/DNMFS3IH74KEMMESOA3EOB6MZ56TWGFF/","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/IVA7K73WHQH4KVFDJQ7ELIUD2WK5ZT5E/","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://security.netapp.com/advisory/ntap-20240105-0001/","label":"af854a3a-2127-422b-91ae-364da2661108"}],"tags":["nvd"],"epss":0.00544,"epssPercentile":0.44556,"ingestedAt":"2026-06-29T13:24:33.942Z","slug":"CVE-2023-48706","body":"## Overview\n\nVim is a UNIX editor that, prior to version 9.0.2121, has a heap-use-after-free vulnerability. When executing a `:s` command for the very first time and using a sub-replace-special atom inside the substitution part, it is possible that the recursive `:s` call causes free-ing of memory which may later then be accessed by the initial `:s` command. The user must intentionally execute the payload and the whole process is a bit tricky to do since it seems to work only reliably for the very first :s command. It may also cause a crash of Vim. Version 9.0.2121 contains a fix for this issue.\n\n## Affected\n\n- `fedora = 38`\n- `fedora = 39`\n- `hci_compute_node`\n- `neovim <= 0.9.5`\n- `vim < 9.0.2121`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `vim 9.0.2121`","depth":"sunlit","depthScore":20,"depthScoreParts":{"impact":19.8,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}