CVE-2021-25830

Katalog CVE

CVSS 9.8 · Critical EPSS 11,8%

Kerentanan pada onlyoffice document server. Skor CVSS 3.1 9.8 (Critical) menurut NVD.

Deskripsi (NVD)

A file extension handling issue was found in [core] module of ONLYOFFICE DocumentServer v4.2.0.236-v5.6.4.13. An attacker must request the conversion of the crafted file from DOCT into DOCX format. Using the chain of two other bugs related to improper string handling, an attacker can achieve remote code execution on DocumentServer.

Rincian

Terbit di NVD

1 Maret 2021

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

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

EPSS (30 hari)

11,8% peluang dieksploitasi; lebih tinggi dari 95,9% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/ONLYOFFICE/core/blob/v5.6.4.13/ASCOfficePPTXFile/Editor/BinaryFileReaderWriter.cpp#L1918 advisory pihak ketiga
• https://github.com/ONLYOFFICE/core/blob/v5.6.4.13/ASCOfficePPTXFile/Editor/BinaryFileReaderWriter.cpp#L241 advisory pihak ketiga
• https://github.com/ONLYOFFICE/core/blob/v5.6.4.13/ASCOfficePPTXFile/PPTXFormat/Logic/UniFill.cpp#L343 advisory pihak ketiga
• https://github.com/merrychap/poc_exploits/tree/master/ONLYOFFICE/CVE-2021-25830 exploit · advisory pihak ketiga
• https://github.com/ONLYOFFICE/DocumentServer product
• https://github.com/ONLYOFFICE/core product