CVE-2026-63272

Summary

LibreOffice can import WMF graphics, which may be embedded in documents. A heap buffer overflow existed when importing a text record that carries its own character advance widths. The count of advance values and the length of the text were read separately from the file and were not required to agree, so drawing the text walked the advance array by character position and ran past its end when the array was the shorter of the two. In fixed versions an advance array shorter than its text is ignored.

Affected Software

VendorProductVersion RangeStatus
The Document FoundationLibreOffice26.2 < < 26.2.5affected

Weaknesses

  • CWE-787: CWE-787 Out-of-bounds Write
  • CWE-125: CWE-125 Out-of-bounds Read

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: partial

References