{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-55693", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-06-17T00:13:10.650Z", "datePublished": "2026-06-25T15:34:33.424Z", "dateUpdated": "2026-06-25T15:34:33.424Z"}, "containers": {"cna": {"title": "Vim: Out-of-bounds Write in Spell File Word Count", "problemTypes": [{"descriptions": [{"cweId": "CWE-787", "lang": "en", "description": "CWE-787: Out-of-bounds Write", "type": "CWE"}]}], "metrics": [{"cvssV4_0": {"attackVector": "LOCAL", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "ACTIVE", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnAvailabilityImpact": "HIGH", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "baseScore": 5.7, "baseSeverity": "MEDIUM", "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U", "version": "4.0"}}], "references": [{"name": "https://github.com/vim/vim/security/advisories/GHSA-wgh4-64f7-q3jq", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/vim/vim/security/advisories/GHSA-wgh4-64f7-q3jq"}, {"name": "https://github.com/vim/vim/commit/a80874d9b84a01040e3d1aef2d4a59e1934dafb7", "tags": ["x_refsource_MISC"], "url": "https://github.com/vim/vim/commit/a80874d9b84a01040e3d1aef2d4a59e1934dafb7"}, {"name": "https://github.com/vim/vim/releases/tag/v9.2.0653", "tags": ["x_refsource_MISC"], "url": "https://github.com/vim/vim/releases/tag/v9.2.0653"}], "affected": [{"vendor": "vim", "product": "vim", "versions": [{"version": "< 9.2.0653", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-06-25T15:34:33.424Z"}, "descriptions": [{"lang": "en", "value": "Vim is an open source, command line text editor. Prior to 9.2.0653, the tree_count_words() function in src/spellfile.c fills in the word-count fields of a spell-file word trie by walking it iteratively with a depth counter. The counter is bounded only by the trie structure itself; it is never checked against the size of the fixed MAXWLEN-element stack arrays it indexes (arridx[], curi[], wordcount[]). A crafted .spl/.sug file pair, loaded when the user invokes spell suggestion, can drive the descent arbitrarily deep, so the function writes past the end of those arrays. This is a stack out-of-bounds write that corrupts the call frame and crashes the editor. This vulnerability is fixed in 9.2.0653."}], "source": {"advisory": "GHSA-wgh4-64f7-q3jq", "discovery": "UNKNOWN"}}}}

{}

{}

{}

{"created": "2026-06-25T16:30:15.465848+00:00", "updated": "2026-06-25T16:30:15.465855+00:00", "vendors": []}