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CVE-2026-45130

Vim is an open source, command line text editor. Prior to version 9.2.0450, a heap buffer overflow exists in read_compound() in src/spellfile.c when loading a crafted spell file (.spl) with UTF-8 encoding active. An attacker-controlled length field in the spell file's compound section overflows a 32-bit signed integer multiplication, causing a small buffer to be allocated for a write loop that runs many iterations, overflowing the heap. Because the 'spelllang' option can be set from a modeline,
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:af462783a99441183d96e31138d269da20eed2460bafda9a2f4b79d3fc0e0293
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

cwe · 2 assertions

{"cweId":"CWE-122","description":"CWE-122: Heap-based Buffer Overflow","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:ee6cc248986b2027082e4620ccb97cf17a3888a81fbccf21105c9470e49fb688 · sha256:0f74531f335f2517… · /containers/cna/problemTypes/0/descriptions/0

{"cweId":"CWE-190","description":"CWE-190: Integer Overflow or Wraparound","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:ee6cc248986b2027082e4620ccb97cf17a3888a81fbccf21105c9470e49fb688 · sha256:0f74531f335f2517… · /containers/cna/problemTypes/1/descriptions/0

Affected products and versions

1 source assertion
{"product":"vim","vendor":"vim","versions":[{"status":"affected","version":"< 9.2.0450"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:ee6cc248986b2027082e4620ccb97cf17a3888a81fbccf21105c9470e49fb688 · sha256:0f74531f335f2517… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"LOCAL","availabilityImpact":"HIGH","baseScore":6.6,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:ee6cc248986b2027082e4620ccb97cf17a3888a81fbccf21105c9470e49fb688 · sha256:0f74531f335f2517… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

2 source assertions
{"cweId":"CWE-122","description":"CWE-122: Heap-based Buffer Overflow","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:ee6cc248986b2027082e4620ccb97cf17a3888a81fbccf21105c9470e49fb688 · sha256:0f74531f335f2517… · /containers/cna/problemTypes/0/descriptions/0
{"cweId":"CWE-190","description":"CWE-190: Integer Overflow or Wraparound","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:ee6cc248986b2027082e4620ccb97cf17a3888a81fbccf21105c9470e49fb688 · sha256:0f74531f335f2517… · /containers/cna/problemTypes/1/descriptions/0

Source references

4 source assertions
{"url":"http://www.openwall.com/lists/oss-security/2026/05/14/3"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:ee6cc248986b2027082e4620ccb97cf17a3888a81fbccf21105c9470e49fb688 · sha256:0f74531f335f2517… · /containers/adp/1/references/0
{"name":"https://github.com/vim/vim/commit/92993329178cb1f72d700fff45ca86e1c2d369f8","tags":["x_refsource_MISC"],"url":"https://github.com/vim/vim/commit/92993329178cb1f72d700fff45ca86e1c2d369f8"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:ee6cc248986b2027082e4620ccb97cf17a3888a81fbccf21105c9470e49fb688 · sha256:0f74531f335f2517… · /containers/cna/references/1
{"name":"https://github.com/vim/vim/releases/tag/v9.2.0450","tags":["x_refsource_MISC"],"url":"https://github.com/vim/vim/releases/tag/v9.2.0450"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:ee6cc248986b2027082e4620ccb97cf17a3888a81fbccf21105c9470e49fb688 · sha256:0f74531f335f2517… · /containers/cna/references/2
{"name":"https://github.com/vim/vim/security/advisories/GHSA-q4jv-r9gj-6cwv","tags":["x_refsource_CONFIRM"],"url":"https://github.com/vim/vim/security/advisories/GHSA-q4jv-r9gj-6cwv"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:ee6cc248986b2027082e4620ccb97cf17a3888a81fbccf21105c9470e49fb688 · sha256:0f74531f335f2517… · /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.

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