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Vulnerabilities

Vulnerable Software

Vulnerability Details CVE-2021-25830

A file extension handling issue was found in [core] module of ONLYOFFICE DocumentServer v4.2.0.236-v5.6.4.13. An attacker must request the conversion of the crafted file from DOCT into DOCX format. Using the chain of two other bugs related to improper string handling, an attacker can achieve remote code execution on DocumentServer.

Exploit prediction scoring system (EPSS) score

EPSS Score 0.053

EPSS Ranking 89.5%

CVSS Severity

CVSS v3 Score 9.8

CVSS v2 Score 7.5

References

Products affected by CVE-2021-25830

Onlyoffice » Document Server » Version: 4.2.1

cpe:2.3:a:onlyoffice:document_server:4.2.1
Onlyoffice » Document Server » Version: 4.2.10

cpe:2.3:a:onlyoffice:document_server:4.2.10
Onlyoffice » Document Server » Version: 4.2.11

cpe:2.3:a:onlyoffice:document_server:4.2.11
Onlyoffice » Document Server » Version: 4.2.3

cpe:2.3:a:onlyoffice:document_server:4.2.3
Onlyoffice » Document Server » Version: 4.2.4

cpe:2.3:a:onlyoffice:document_server:4.2.4
Onlyoffice » Document Server » Version: 4.2.5

cpe:2.3:a:onlyoffice:document_server:4.2.5
Onlyoffice » Document Server » Version: 4.2.7

cpe:2.3:a:onlyoffice:document_server:4.2.7
Onlyoffice » Document Server » Version: 4.2.8

cpe:2.3:a:onlyoffice:document_server:4.2.8
Onlyoffice » Document Server » Version: 4.2.9

cpe:2.3:a:onlyoffice:document_server:4.2.9
Onlyoffice » Document Server » Version: 4.3.0

cpe:2.3:a:onlyoffice:document_server:4.3.0
Onlyoffice » Document Server » Version: 4.3.1

cpe:2.3:a:onlyoffice:document_server:4.3.1
Onlyoffice » Document Server » Version: 4.3.2

cpe:2.3:a:onlyoffice:document_server:4.3.2
Onlyoffice » Document Server » Version: 4.3.3

cpe:2.3:a:onlyoffice:document_server:4.3.3
Onlyoffice » Document Server » Version: 4.3.4

cpe:2.3:a:onlyoffice:document_server:4.3.4
Onlyoffice » Document Server » Version: 4.3.5

cpe:2.3:a:onlyoffice:document_server:4.3.5
Onlyoffice » Document Server » Version: 4.3.6

cpe:2.3:a:onlyoffice:document_server:4.3.6
Onlyoffice » Document Server » Version: 4.4.1

cpe:2.3:a:onlyoffice:document_server:4.4.1
Onlyoffice » Document Server » Version: 4.4.2

cpe:2.3:a:onlyoffice:document_server:4.4.2
Onlyoffice » Document Server » Version: 4.4.3

cpe:2.3:a:onlyoffice:document_server:4.4.3
Onlyoffice » Document Server » Version: 5.0.3

cpe:2.3:a:onlyoffice:document_server:5.0.3
Onlyoffice » Document Server » Version: 5.0.4

cpe:2.3:a:onlyoffice:document_server:5.0.4
Onlyoffice » Document Server » Version: 5.0.5

cpe:2.3:a:onlyoffice:document_server:5.0.5
Onlyoffice » Document Server » Version: 5.0.6

cpe:2.3:a:onlyoffice:document_server:5.0.6
Onlyoffice » Document Server » Version: 5.0.7

cpe:2.3:a:onlyoffice:document_server:5.0.7
Onlyoffice » Document Server » Version: 5.1.0

cpe:2.3:a:onlyoffice:document_server:5.1.0
Onlyoffice » Document Server » Version: 5.1.1

cpe:2.3:a:onlyoffice:document_server:5.1.1
Onlyoffice » Document Server » Version: 5.1.2

cpe:2.3:a:onlyoffice:document_server:5.1.2
Onlyoffice » Document Server » Version: 5.1.3

cpe:2.3:a:onlyoffice:document_server:5.1.3
Onlyoffice » Document Server » Version: 5.1.4

cpe:2.3:a:onlyoffice:document_server:5.1.4
Onlyoffice » Document Server » Version: 5.1.5

cpe:2.3:a:onlyoffice:document_server:5.1.5
Onlyoffice » Document Server » Version: 5.2.0

cpe:2.3:a:onlyoffice:document_server:5.2.0
Onlyoffice » Document Server » Version: 5.2.2

cpe:2.3:a:onlyoffice:document_server:5.2.2
Onlyoffice » Document Server » Version: 5.2.3

cpe:2.3:a:onlyoffice:document_server:5.2.3
Onlyoffice » Document Server » Version: 5.2.4

cpe:2.3:a:onlyoffice:document_server:5.2.4
Onlyoffice » Document Server » Version: 5.2.6

cpe:2.3:a:onlyoffice:document_server:5.2.6
Onlyoffice » Document Server » Version: 5.2.7

cpe:2.3:a:onlyoffice:document_server:5.2.7
Onlyoffice » Document Server » Version: 5.2.8

cpe:2.3:a:onlyoffice:document_server:5.2.8
Onlyoffice » Document Server » Version: 5.3.0

cpe:2.3:a:onlyoffice:document_server:5.3.0
Onlyoffice » Document Server » Version: 5.3.1

cpe:2.3:a:onlyoffice:document_server:5.3.1
Onlyoffice » Document Server » Version: 5.3.2

cpe:2.3:a:onlyoffice:document_server:5.3.2
Onlyoffice » Document Server » Version: 5.3.4

cpe:2.3:a:onlyoffice:document_server:5.3.4
Onlyoffice » Document Server » Version: 5.4.0-2

cpe:2.3:a:onlyoffice:document_server:5.4.0-2
Onlyoffice » Document Server » Version: 5.4.1

cpe:2.3:a:onlyoffice:document_server:5.4.1
Onlyoffice » Document Server » Version: 5.4.2

cpe:2.3:a:onlyoffice:document_server:5.4.2
Onlyoffice » Document Server » Version: 5.5.0

cpe:2.3:a:onlyoffice:document_server:5.5.0
Onlyoffice » Document Server » Version: 5.5.1

cpe:2.3:a:onlyoffice:document_server:5.5.1
Onlyoffice » Document Server » Version: 5.5.3

cpe:2.3:a:onlyoffice:document_server:5.5.3
Onlyoffice » Document Server » Version: 5.6.0

cpe:2.3:a:onlyoffice:document_server:5.6.0
Onlyoffice » Document Server » Version: 5.6.1

cpe:2.3:a:onlyoffice:document_server:5.6.1
Onlyoffice » Document Server » Version: 5.6.2

cpe:2.3:a:onlyoffice:document_server:5.6.2
Onlyoffice » Document Server » Version: 5.6.3

cpe:2.3:a:onlyoffice:document_server:5.6.3
Onlyoffice » Document Server » Version: 5.6.4

cpe:2.3:a:onlyoffice:document_server:5.6.4

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Vulnerability Details CVE-2021-25830

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