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Vulnerable Software

Vulnerability Details CVE-2021-25831

A file extension handling issue was found in [core] module of ONLYOFFICE DocumentServer v4.0.0-9-v5.6.3. An attacker must request the conversion of the crafted file from PPTT into PPTX format. Using the chain of two other bugs related to improper string handling, a remote attacker can obtain remote code execution on DocumentServer.

Exploit prediction scoring system (EPSS) score

EPSS Score 0.036

EPSS Ranking 87.3%

CVSS Severity

CVSS v3 Score 9.8

CVSS v2 Score 7.5

References

Products affected by CVE-2021-25831

Onlyoffice » Document Server » Version: 4.0.0-9

cpe:2.3:a:onlyoffice:document_server:4.0.0-9
Onlyoffice » Document Server » Version: 4.0.1-34

cpe:2.3:a:onlyoffice:document_server:4.0.1-34
Onlyoffice » Document Server » Version: 4.0.2-4

cpe:2.3:a:onlyoffice:document_server:4.0.2-4
Onlyoffice » Document Server » Version: 4.0.3-3

cpe:2.3:a:onlyoffice:document_server:4.0.3-3
Onlyoffice » Document Server » Version: 4.1.2-37

cpe:2.3:a:onlyoffice:document_server:4.1.2-37
Onlyoffice » Document Server » Version: 4.1.4-3

cpe:2.3:a:onlyoffice:document_server:4.1.4-3
Onlyoffice » Document Server » Version: 4.1.5-1

cpe:2.3:a:onlyoffice:document_server:4.1.5-1
Onlyoffice » Document Server » Version: 4.1.6-3

cpe:2.3:a:onlyoffice:document_server:4.1.6-3
Onlyoffice » Document Server » Version: 4.1.8-1

cpe:2.3:a:onlyoffice:document_server:4.1.8-1
Onlyoffice » Document Server » Version: 4.2.0

cpe:2.3:a:onlyoffice:document_server:4.2.0
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

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Vulnerability Details CVE-2021-25831

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