CVE-2026-26825

Katalog CVE

CVSS 5.3 · Medium EPSS 0,40%

Kerentanan Use of Uninitialized Resource pada libxls project libxls. Skor CVSS 3.1 5.3 (Medium) menurut NVD.

Deskripsi (NVD)

A use-of-uninitialized memory vulnerability exists in libxls 1.6.3 when parsing malformed XLS files. The issue is reachable via xls_parseWorkBook() and is triggered by uninitialized heap memory originating from the OLE layer (ole2_read). The flaw is detectable with MemorySanitizer (MSAN) and can lead to undefined behavior, incorrect parsing logic, or potential information disclosure.

Rincian

Terbit di NVD

3 Juni 2026

Terakhir diubah

23 September 2026

Status NVD

Modified

CVSS 3.1

5.3 (Medium), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-908: Use of Uninitialized Resource

EPSS (30 hari)

0,40% peluang dieksploitasi; lebih tinggi dari 32,4% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/libxls/libxls/issues/156 exploit · issue tracking
• https://github.com/libxls/libxls/commit/9adf88f4e3b304e397f70ac189e70776edb6d5a3
• https://github.com/libxls/libxls/issues/153