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CVE-2026-6045

LibreOffice can import EMF+ graphics, which may be embedded in documents. A heap buffer overflow existed when importing an EMF+ gradient brush. The number of gradient blend points was read from the file and used to compute an allocation size, but that multiplication could overflow, so a small buffer was allocated and then filled as if it were large, writing past its end. In fixed versions the blend-point count is checked against the data actually available before allocating.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:088afd09778745c4fc9dd9c6b352ebde46eb029eb94eb106e87214af88268b33
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-190","description":"CWE-190 Integer Overflow or Wraparound","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:bde0be378a427f065f9147a7bc526f674002f3a5581699182118f2ed244a1245 · sha256:ba52c8dd912ff1a1… · /containers/cna/problemTypes/1/descriptions/0

{"cweId":"CWE-787","description":"CWE-787 Out-of-bounds Write","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:bde0be378a427f065f9147a7bc526f674002f3a5581699182118f2ed244a1245 · sha256:ba52c8dd912ff1a1… · /containers/cna/problemTypes/0/descriptions/0

Affected products and versions

1 source assertion
{"defaultStatus":"unknown","product":"LibreOffice","vendor":"The Document Foundation","versions":[{"lessThan":"< 25.8.7","status":"affected","version":"25.8","versionType":"25.8 series"},{"lessThan":"< 26.2.3","status":"affected","version":"26.2","versionType":"26.2 series"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:bde0be378a427f065f9147a7bc526f674002f3a5581699182118f2ed244a1245 · sha256:ba52c8dd912ff1a1… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"LOCAL","baseScore":5.4,"baseSeverity":"MEDIUM","exploitMaturity":"PROOF_OF_CONCEPT","privilegesRequired":"NONE","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"PASSIVE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N/E:P","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidential…
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:bde0be378a427f065f9147a7bc526f674002f3a5581699182118f2ed244a1245 · sha256:ba52c8dd912ff1a1… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

2 source assertions
{"cweId":"CWE-190","description":"CWE-190 Integer Overflow or Wraparound","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:bde0be378a427f065f9147a7bc526f674002f3a5581699182118f2ed244a1245 · sha256:ba52c8dd912ff1a1… · /containers/cna/problemTypes/1/descriptions/0
{"cweId":"CWE-787","description":"CWE-787 Out-of-bounds Write","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:bde0be378a427f065f9147a7bc526f674002f3a5581699182118f2ed244a1245 · sha256:ba52c8dd912ff1a1… · /containers/cna/problemTypes/0/descriptions/0

Source references

1 source assertion
{"url":"https://www.libreoffice.org/about-us/security/advisories/cve-2026-6045"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:bde0be378a427f065f9147a7bc526f674002f3a5581699182118f2ed244a1245 · sha256:ba52c8dd912ff1a1… · /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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