CVE Explorer
CVE-2026-55892
Vim is an open source, command line text editor. Prior to 9.2.0662, the dump_prefixes() function in src/spell.c walks a spell-file prefix trie iteratively with a depth counter while dumping the prefixes that apply to a word. 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 (prefix[], arridx[], curi[]). A crafted .spl file, loaded when the user dumps the word list, can drive the descent arbitrarily
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"product":"vim","vendor":"vim","versions":[{"status":"affected","version":"< 9.2.0662"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:10fd8b0a7b14b8df34abab2297a8ea166841c3d5b0dd9f825b8c8f4dc98a953e · sha256:e3469e59f5691247… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"attackComplexity":"LOW","attackVector":"LOCAL","availabilityImpact":"HIGH","baseScore":5.5,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:10fd8b0a7b14b8df34abab2297a8ea166841c3d5b0dd9f825b8c8f4dc98a953e · sha256:e3469e59f5691247… · /containers/cna/metrics/0/cvssV3_1
CWE assertions
1 source assertion{"cweId":"CWE-787","description":"CWE-787: Out-of-bounds Write","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:10fd8b0a7b14b8df34abab2297a8ea166841c3d5b0dd9f825b8c8f4dc98a953e · sha256:e3469e59f5691247… · /containers/cna/problemTypes/0/descriptions/0
Source references
3 source assertions{"name":"https://github.com/vim/vim/commit/8325b193bba5f01e7a7d8241f","tags":["x_refsource_MISC"],"url":"https://github.com/vim/vim/commit/8325b193bba5f01e7a7d8241f"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:10fd8b0a7b14b8df34abab2297a8ea166841c3d5b0dd9f825b8c8f4dc98a953e · sha256:e3469e59f5691247… · /containers/cna/references/1
{"name":"https://github.com/vim/vim/releases/tag/v9.2.0662","tags":["x_refsource_MISC"],"url":"https://github.com/vim/vim/releases/tag/v9.2.0662"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:10fd8b0a7b14b8df34abab2297a8ea166841c3d5b0dd9f825b8c8f4dc98a953e · sha256:e3469e59f5691247… · /containers/cna/references/2
{"name":"https://github.com/vim/vim/security/advisories/GHSA-qm9w-fmpj-879h","tags":["x_refsource_CONFIRM"],"url":"https://github.com/vim/vim/security/advisories/GHSA-qm9w-fmpj-879h"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:10fd8b0a7b14b8df34abab2297a8ea166841c3d5b0dd9f825b8c8f4dc98a953e · sha256:e3469e59f5691247… · /containers/cna/references/0
Attribution and limitations
- CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →
Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.