CVE-2026-41034

MEDIUM EPSS 21.1%

Published Apr 16, 20262mo ago · Modified Jun 17, 20262w ago

5.0 CVSS 3.1

Medium

Published Apr 16, 2026 2mo ago

Last Modified Jun 17, 2026 2w ago

Description

ONLYOFFICE DocumentServer before 9.3.0 has an untrusted pointer dereference in XLS processing/conversion (via pictFmla.cbBufInCtlStm and other vectors), leading to an information leak and ASLR bypass.

CVSS Details

Base Score

5.0

Exploitability

3.1

Impact

1.4

Vector string

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N

Attack Vector Network

Attack Complexity Low

Privileges Required Low

User Interaction None

Scope Changed

Confidentiality Low

Integrity None

Availability None

Threat Intelligence

EPSS Exploit Probability

21.1% percentile

Exploit & Patch Status

No Known Exploit

No Patch Available

Weaknesses 1

CWE-125 Out-of-bounds Read Memory Safety

References 1

github.com https://github.com/ONLYOFFICE/DocumentServer/blob/master/CHANGELOG.md

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.