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CVE-2026-28420

Vim is an open source, command line text editor. Prior to version 9.2.0076, a heap-based buffer overflow WRITE and an out-of-bounds READ exist in Vim's terminal emulator when processing maximum combining characters from Unicode supplementary planes. Version 9.2.0076 fixes the issue.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:ad4082ae842bc5e8641791425a6951fed22cf26edca41b0b7b35d3ad4f8e2a3e
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-125","description":"CWE-125: Out-of-bounds Read","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:71acb4b620b5f037aba237659b8b0f1dc54c936d283c566eca5e3a05ab63e313 · sha256:834ebbafa8e142c0… · /containers/cna/problemTypes/1/descriptions/0

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

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:71acb4b620b5f037aba237659b8b0f1dc54c936d283c566eca5e3a05ab63e313 · sha256:834ebbafa8e142c0… · /containers/cna/problemTypes/0/descriptions/0

Affected products and versions

1 source assertion
{"product":"vim","vendor":"vim","versions":[{"status":"affected","version":"< 9.2.0076"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:71acb4b620b5f037aba237659b8b0f1dc54c936d283c566eca5e3a05ab63e313 · sha256:834ebbafa8e142c0… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"LOCAL","availabilityImpact":"LOW","baseScore":4.4,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:71acb4b620b5f037aba237659b8b0f1dc54c936d283c566eca5e3a05ab63e313 · sha256:834ebbafa8e142c0… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

2 source assertions
{"cweId":"CWE-125","description":"CWE-125: Out-of-bounds Read","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:71acb4b620b5f037aba237659b8b0f1dc54c936d283c566eca5e3a05ab63e313 · sha256:834ebbafa8e142c0… · /containers/cna/problemTypes/1/descriptions/0
{"cweId":"CWE-122","description":"CWE-122: Heap-based Buffer Overflow","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:71acb4b620b5f037aba237659b8b0f1dc54c936d283c566eca5e3a05ab63e313 · sha256:834ebbafa8e142c0… · /containers/cna/problemTypes/0/descriptions/0

Source references

4 source assertions
{"url":"http://www.openwall.com/lists/oss-security/2026/02/27/9"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:71acb4b620b5f037aba237659b8b0f1dc54c936d283c566eca5e3a05ab63e313 · sha256:834ebbafa8e142c0… · /containers/adp/0/references/0
{"name":"https://github.com/vim/vim/commit/bb6de2105b160e729c34063","tags":["x_refsource_MISC"],"url":"https://github.com/vim/vim/commit/bb6de2105b160e729c34063"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:71acb4b620b5f037aba237659b8b0f1dc54c936d283c566eca5e3a05ab63e313 · sha256:834ebbafa8e142c0… · /containers/cna/references/1
{"name":"https://github.com/vim/vim/releases/tag/v9.2.0076","tags":["x_refsource_MISC"],"url":"https://github.com/vim/vim/releases/tag/v9.2.0076"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:71acb4b620b5f037aba237659b8b0f1dc54c936d283c566eca5e3a05ab63e313 · sha256:834ebbafa8e142c0… · /containers/cna/references/2
{"name":"https://github.com/vim/vim/security/advisories/GHSA-rvj2-jrf9-2phg","tags":["x_refsource_CONFIRM"],"url":"https://github.com/vim/vim/security/advisories/GHSA-rvj2-jrf9-2phg"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:71acb4b620b5f037aba237659b8b0f1dc54c936d283c566eca5e3a05ab63e313 · sha256:834ebbafa8e142c0… · /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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