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CVE-2021-3199: document server before 5.6.3 (exclusive); +1 more affected products
CVE-2021-3199. CVSS 3.1 base score 9.8 (CRITICAL, NVD). EPSS 0.08215 (percentile 0.9475), scored 2026-10-08.
Affected technology
document server · before 5.6.3 (exclusive)
onlyoffice
n/a · n/a
Vendor not specified by the source
Description’s affected range: before 5.6.3
Component: Not specified by the source
Attack conditions (NVD, CVSS 3.1): Network (remote) · No privileges required · No user interaction required
Attack conditions (Source advisory, CVSS 3.1): Network (remote) · No privileges required · No user interaction required
What an attacker can do
The source reports that an attacker could run code remotely under the conditions described by the source. NVD’s CVSS 3.1 assessment (base score 9.8/10) rates confidentiality, integrity and availability impact as high. Source advisory’s CVSS 3.1 assessment (base score 9.8/10) rates confidentiality, integrity and availability impact as high.
- CWE
- CWE-22
- CCR priority
- 41.3 /100 (P3)
- CVSS 3.1
- 9.8 /10 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H · NVD
- EPSS
- 0.08215 · percentile 0.9475 · 2026-10-08
- KEV
- no
Provenance
- NVD CVE API 2.0 · Source record · observed 2026-10-08 18:34:48.508309+00:00 UTC
Stable permalink: https://cybercodered.org/item/cve-cve-2021-3199.html