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.

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Workaround

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History

Tue, 22 Sep 2026 13:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Tue, 22 Sep 2026 11:30:00 +0000

Type Values Removed Values Added
Description 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.
Title Heap buffer overflow in WMF text record import
Weaknesses CWE-125
CWE-787
References
Metrics cvssV4_0

{'score': 5.4, 'vector': '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'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: Document Fdn.

Published:

Updated: 2026-09-22T12:28:29.813Z

Reserved: 2026-07-16T08:17:05.511Z

Link: CVE-2026-63272

cve-icon Vulnrichment

Updated: 2026-09-22T12:28:21.895Z

cve-icon NVD

Status : Received

Published: 2026-09-22T12:17:11.853

Modified: 2026-09-22T13:17:10.180

Link: CVE-2026-63272

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-22T13:00:14Z

Weaknesses