CVE-2026-41034

Published: Apr 16, 2026

Modified: Apr 16, 2026

PUBLISHED

CVSS v3.1

5.0

MEDIUM

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.

Vendor	Product	Versions
Ascensio	ONLYOFFICE DocumentServer	affected `0 - < 9.3.0`

Weaknesses (CWE)

CWE-125

CVSS v3.1 Details

CVSS v3.1 Vector

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

References

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

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CVE-2026-41034

Description

Affected Products

Weaknesses (CWE)

CVSS v3.1 Details

References