CVE-2026-63276

Katalog CVE

CVSS 5.4 · Medium EPSS 0,19%

Kerentanan Out-of-bounds Write. Skor CVSS 4.0 5.4 (Medium) menurut documentfoundation.org.

Deskripsi (NVD)

LibreOffice converts CFF fonts to Type 1 when it subsets a font, which happens when a document is exported to PDF, and CFF fonts may be embedded in documents. A stack buffer overflow existed in that conversion. The converted operators were written into a fixed size buffer with no check that they still fit, so a glyph emitting many operators wrote past the end of the buffer. In fixed versions the remaining capacity is tracked and the conversion stops when it is used up.

Rincian

Terbit di NVD

22 September 2026

Terakhir diubah

22 September 2026

Status NVD

Deferred

CVSS 4.0

5.4 (Medium), sumber documentfoundation.org
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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-787: Out-of-bounds Write

EPSS (30 hari)

0,19% peluang dieksploitasi; lebih tinggi dari 7,6% CVE lain

Produk dan versi terdampak

NVD belum mencantumkan data produk (CPE) untuk CVE ini. Produk yang terdampak biasanya disebut di deskripsi dan di advisory vendor pada daftar referensi.

Referensi dan perbaikan

• https://www.libreoffice.org/about-us/security/advisories/cve-2026-63276