Description
LibreOffice can read CFF fonts, which may be embedded in documents. A stack buffer overflow existed when reading the hints of a glyph. The number of hints was checked against the wrong bound, so a glyph declaring more hints than the array can hold wrote past its end. In fixed versions the hint count is checked against the capacity the array really has.
Published: 2026-09-22
Score: 5.4 Medium
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

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

Type Values Removed Values Added
Description LibreOffice can read CFF fonts, which may be embedded in documents. A stack buffer overflow existed when reading the hints of a glyph. The number of hints was checked against the wrong bound, so a glyph declaring more hints than the array can hold wrote past its end. In fixed versions the hint count is checked against the capacity the array really has.
Title Stack buffer overflow in CFF font hint handling
Weaknesses 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'}

Subscriptions

No data.

cve-icon MITRE

Status: PUBLISHED

Assigner: Document Fdn.

Published:

Updated: 2026-09-22T12:23:37.244Z

Reserved: 2026-07-16T08:17:05.512Z

Link: CVE-2026-63275

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-09-22T12:17:13.287

Modified: 2026-09-22T12:17:13.287

Link: CVE-2026-63275

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-22T12:30:07Z

Weaknesses