CVE-2021-25832
CRITICALONLYOFFICE DocumentServer 4.0.0-9-6.0.0 - Remote Code Execution via BMP Image Processing
Title source: llmDescription
A heap buffer overflow vulnerability inside of BMP image processing was found at [core] module of ONLYOFFICE DocumentServer v4.0.0-9-v6.0.0. Using this vulnerability, an attacker is able to gain remote code executions on DocumentServer.
References (7)
Core 7
Core References
Product x_refsource_misc
https://github.com/ONLYOFFICE/DocumentServer
Product, Vendor Advisory x_refsource_misc
https://github.com/ONLYOFFICE/core
Vendor Advisory x_refsource_misc
https://github.com/ONLYOFFICE/core/blob/v6.0.1.15/DesktopEditor/cximage/CxImage/ximabmp.cpp#L358
Vendor Advisory x_refsource_misc
https://github.com/ONLYOFFICE/core/blob/v6.0.1.15/DesktopEditor/cximage/CxImage/ximabmp.cpp#L354
Vendor Advisory x_refsource_misc
https://github.com/ONLYOFFICE/core/blob/v6.0.1.15/ASCOfficePPTXFile/Editor/BinaryFileReaderWriter.cpp#L424
Vendor Advisory x_refsource_misc
https://github.com/ONLYOFFICE/core/blob/v6.0.1.15/ASCOfficePPTXFile/Editor/BinaryFileReaderWriter.cpp#L428
Exploit, Third Party Advisory x_refsource_misc
https://github.com/merrychap/poc_exploits/tree/master/ONLYOFFICE/CVE-2021-25832
Scores
CVSS v3
9.8
EPSS
0.1259
EPSS Percentile
95.8%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Details
CWE
CWE-787
Status
published
Products (1)
onlyoffice/document_server
4.0.0-9 - 6.0.0
Published
Mar 01, 2021
Tracked Since
Feb 18, 2026