CVE-2026-41034CWE-125

ONLYOFFICE DocumentServer before 9.3.0 has an untrusted pointer dereference in XLS processing/conversion (via pictFmla.cbBufInCtlStm and other vectors)…

Medium · published April 16, 2026

CVSS v3.1
5.0
EPSS
0%
Percentile
23.8
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
5.0 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N
CVSS v4.0
Not supplied
EPSS
0.00320 · 23.8th percentile
Weakness
CWE-125 · Out-of-bounds Read
Published
2026-04-16T06:06Z
EPSS history
Timeline
  • 16 APR 06:06Z
    ONLYOFFICE DocumentServer before 9.3.0 has an untrusted pointer dereference in XLS processing/conversion (via pictFmla.cbBufInCtlStm and other vectors)…
    cvelistv5