CVEDB API

Vulnerabilities

Vulnerable Software

Vulnerability Details CVE-2026-73576

In Zimbra Collaboration (ZCS) before 10.1.17, weak cryptographic key generation vulnerability exists in the OnlyOffice integration. The zimbraDocumentEditingJwtSecret is generated using an insecure random number generator, resulting in insufficient entropy. An attacker who obtains a JWT signed with the generated secret may be able to recover the JWT signing secret through offline brute-force, potentially enabling JWT forgery.

Exploit prediction scoring system (EPSS) score

EPSS Score 0.002

EPSS Ranking 9.1%

CVSS Severity

CVSS v3 Score 6.3

References

Products affected by CVE-2026-73576

Synacor » Zimbra Collaboration Suite » Version: 10.0.0

cpe:2.3:a:synacor:zimbra_collaboration_suite:10.0.0
Synacor » Zimbra Collaboration Suite » Version: 10.0.1

cpe:2.3:a:synacor:zimbra_collaboration_suite:10.0.1
Synacor » Zimbra Collaboration Suite » Version: 10.0.10

cpe:2.3:a:synacor:zimbra_collaboration_suite:10.0.10
Synacor » Zimbra Collaboration Suite » Version: 10.0.11

cpe:2.3:a:synacor:zimbra_collaboration_suite:10.0.11
Synacor » Zimbra Collaboration Suite » Version: 10.0.12

cpe:2.3:a:synacor:zimbra_collaboration_suite:10.0.12
Synacor » Zimbra Collaboration Suite » Version: 10.0.13

cpe:2.3:a:synacor:zimbra_collaboration_suite:10.0.13
Synacor » Zimbra Collaboration Suite » Version: 10.0.14

cpe:2.3:a:synacor:zimbra_collaboration_suite:10.0.14
Synacor » Zimbra Collaboration Suite » Version: 10.0.15

cpe:2.3:a:synacor:zimbra_collaboration_suite:10.0.15
Synacor » Zimbra Collaboration Suite » Version: 10.0.16

cpe:2.3:a:synacor:zimbra_collaboration_suite:10.0.16
Synacor » Zimbra Collaboration Suite » Version: 10.0.17

cpe:2.3:a:synacor:zimbra_collaboration_suite:10.0.17
Synacor » Zimbra Collaboration Suite » Version: 10.0.18

cpe:2.3:a:synacor:zimbra_collaboration_suite:10.0.18
Synacor » Zimbra Collaboration Suite » Version: 10.0.2

cpe:2.3:a:synacor:zimbra_collaboration_suite:10.0.2
Synacor » Zimbra Collaboration Suite » Version: 10.0.3

cpe:2.3:a:synacor:zimbra_collaboration_suite:10.0.3
Synacor » Zimbra Collaboration Suite » Version: 10.0.4

cpe:2.3:a:synacor:zimbra_collaboration_suite:10.0.4
Synacor » Zimbra Collaboration Suite » Version: 10.0.5

cpe:2.3:a:synacor:zimbra_collaboration_suite:10.0.5
Synacor » Zimbra Collaboration Suite » Version: 10.0.6

cpe:2.3:a:synacor:zimbra_collaboration_suite:10.0.6
Synacor » Zimbra Collaboration Suite » Version: 10.0.7

cpe:2.3:a:synacor:zimbra_collaboration_suite:10.0.7
Synacor » Zimbra Collaboration Suite » Version: 10.0.8

cpe:2.3:a:synacor:zimbra_collaboration_suite:10.0.8
Synacor » Zimbra Collaboration Suite » Version: 10.0.9

cpe:2.3:a:synacor:zimbra_collaboration_suite:10.0.9
Synacor » Zimbra Collaboration Suite » Version: 10.1.0

cpe:2.3:a:synacor:zimbra_collaboration_suite:10.1.0
Synacor » Zimbra Collaboration Suite » Version: 10.1.1

cpe:2.3:a:synacor:zimbra_collaboration_suite:10.1.1
Synacor » Zimbra Collaboration Suite » Version: 10.1.10

cpe:2.3:a:synacor:zimbra_collaboration_suite:10.1.10
Synacor » Zimbra Collaboration Suite » Version: 10.1.11

cpe:2.3:a:synacor:zimbra_collaboration_suite:10.1.11
Synacor » Zimbra Collaboration Suite » Version: 10.1.12

cpe:2.3:a:synacor:zimbra_collaboration_suite:10.1.12
Synacor » Zimbra Collaboration Suite » Version: 10.1.13

cpe:2.3:a:synacor:zimbra_collaboration_suite:10.1.13
Synacor » Zimbra Collaboration Suite » Version: 10.1.14

cpe:2.3:a:synacor:zimbra_collaboration_suite:10.1.14
Synacor » Zimbra Collaboration Suite » Version: 10.1.15

cpe:2.3:a:synacor:zimbra_collaboration_suite:10.1.15
Synacor » Zimbra Collaboration Suite » Version: 10.1.16

cpe:2.3:a:synacor:zimbra_collaboration_suite:10.1.16
Synacor » Zimbra Collaboration Suite » Version: 10.1.2

cpe:2.3:a:synacor:zimbra_collaboration_suite:10.1.2
Synacor » Zimbra Collaboration Suite » Version: 10.1.3

cpe:2.3:a:synacor:zimbra_collaboration_suite:10.1.3
Synacor » Zimbra Collaboration Suite » Version: 10.1.4

cpe:2.3:a:synacor:zimbra_collaboration_suite:10.1.4
Synacor » Zimbra Collaboration Suite » Version: 10.1.5

cpe:2.3:a:synacor:zimbra_collaboration_suite:10.1.5
Synacor » Zimbra Collaboration Suite » Version: 10.1.6

cpe:2.3:a:synacor:zimbra_collaboration_suite:10.1.6
Synacor » Zimbra Collaboration Suite » Version: 10.1.7

cpe:2.3:a:synacor:zimbra_collaboration_suite:10.1.7
Synacor » Zimbra Collaboration Suite » Version: 10.1.8

cpe:2.3:a:synacor:zimbra_collaboration_suite:10.1.8
Synacor » Zimbra Collaboration Suite » Version: 10.1.9

cpe:2.3:a:synacor:zimbra_collaboration_suite:10.1.9
Synacor » Zimbra Collaboration Suite » Version: 6.0.0

cpe:2.3:a:synacor:zimbra_collaboration_suite:6.0.0
Synacor » Zimbra Collaboration Suite » Version: 6.0.1

cpe:2.3:a:synacor:zimbra_collaboration_suite:6.0.1
Synacor » Zimbra Collaboration Suite » Version: 6.0.10

cpe:2.3:a:synacor:zimbra_collaboration_suite:6.0.10
Synacor » Zimbra Collaboration Suite » Version: 6.0.12

cpe:2.3:a:synacor:zimbra_collaboration_suite:6.0.12
Synacor » Zimbra Collaboration Suite » Version: 6.0.13

cpe:2.3:a:synacor:zimbra_collaboration_suite:6.0.13
Synacor » Zimbra Collaboration Suite » Version: 6.0.14

cpe:2.3:a:synacor:zimbra_collaboration_suite:6.0.14
Synacor » Zimbra Collaboration Suite » Version: 6.0.15

cpe:2.3:a:synacor:zimbra_collaboration_suite:6.0.15
Synacor » Zimbra Collaboration Suite » Version: 6.0.16

cpe:2.3:a:synacor:zimbra_collaboration_suite:6.0.16
Synacor » Zimbra Collaboration Suite » Version: 6.0.2

cpe:2.3:a:synacor:zimbra_collaboration_suite:6.0.2
Synacor » Zimbra Collaboration Suite » Version: 6.0.3

cpe:2.3:a:synacor:zimbra_collaboration_suite:6.0.3
Synacor » Zimbra Collaboration Suite » Version: 6.0.4

cpe:2.3:a:synacor:zimbra_collaboration_suite:6.0.4
Synacor » Zimbra Collaboration Suite » Version: 6.0.5

cpe:2.3:a:synacor:zimbra_collaboration_suite:6.0.5
Synacor » Zimbra Collaboration Suite » Version: 6.0.6

cpe:2.3:a:synacor:zimbra_collaboration_suite:6.0.6
Synacor » Zimbra Collaboration Suite » Version: 6.0.7

cpe:2.3:a:synacor:zimbra_collaboration_suite:6.0.7
Synacor » Zimbra Collaboration Suite » Version: 6.0.8

cpe:2.3:a:synacor:zimbra_collaboration_suite:6.0.8
Synacor » Zimbra Collaboration Suite » Version: 6.0.9

cpe:2.3:a:synacor:zimbra_collaboration_suite:6.0.9
Synacor » Zimbra Collaboration Suite » Version: 7.2.7

cpe:2.3:a:synacor:zimbra_collaboration_suite:7.2.7
Synacor » Zimbra Collaboration Suite » Version: 8.0.0

cpe:2.3:a:synacor:zimbra_collaboration_suite:8.0.0
Synacor » Zimbra Collaboration Suite » Version: 8.0.1

cpe:2.3:a:synacor:zimbra_collaboration_suite:8.0.1
Synacor » Zimbra Collaboration Suite » Version: 8.0.2

cpe:2.3:a:synacor:zimbra_collaboration_suite:8.0.2
Synacor » Zimbra Collaboration Suite » Version: 8.0.3

cpe:2.3:a:synacor:zimbra_collaboration_suite:8.0.3
Synacor » Zimbra Collaboration Suite » Version: 8.0.4

cpe:2.3:a:synacor:zimbra_collaboration_suite:8.0.4
Synacor » Zimbra Collaboration Suite » Version: 8.0.5

cpe:2.3:a:synacor:zimbra_collaboration_suite:8.0.5
Synacor » Zimbra Collaboration Suite » Version: 8.0.6

cpe:2.3:a:synacor:zimbra_collaboration_suite:8.0.6
Synacor » Zimbra Collaboration Suite » Version: 8.0.7

cpe:2.3:a:synacor:zimbra_collaboration_suite:8.0.7
Synacor » Zimbra Collaboration Suite » Version: 8.0.8

cpe:2.3:a:synacor:zimbra_collaboration_suite:8.0.8
Synacor » Zimbra Collaboration Suite » Version: 8.0.9

cpe:2.3:a:synacor:zimbra_collaboration_suite:8.0.9
Synacor » Zimbra Collaboration Suite » Version: 8.5.0

cpe:2.3:a:synacor:zimbra_collaboration_suite:8.5.0
Synacor » Zimbra Collaboration Suite » Version: 8.5.1

cpe:2.3:a:synacor:zimbra_collaboration_suite:8.5.1
Synacor » Zimbra Collaboration Suite » Version: 8.6.0

cpe:2.3:a:synacor:zimbra_collaboration_suite:8.6.0
Synacor » Zimbra Collaboration Suite » Version: 8.7.0

cpe:2.3:a:synacor:zimbra_collaboration_suite:8.7.0
Synacor » Zimbra Collaboration Suite » Version: 8.7.1

cpe:2.3:a:synacor:zimbra_collaboration_suite:8.7.1
Synacor » Zimbra Collaboration Suite » Version: 8.7.10

cpe:2.3:a:synacor:zimbra_collaboration_suite:8.7.10
Synacor » Zimbra Collaboration Suite » Version: 8.7.11

cpe:2.3:a:synacor:zimbra_collaboration_suite:8.7.11
Synacor » Zimbra Collaboration Suite » Version: 8.7.2

cpe:2.3:a:synacor:zimbra_collaboration_suite:8.7.2
Synacor » Zimbra Collaboration Suite » Version: 8.7.3

cpe:2.3:a:synacor:zimbra_collaboration_suite:8.7.3
Synacor » Zimbra Collaboration Suite » Version: 8.7.4

cpe:2.3:a:synacor:zimbra_collaboration_suite:8.7.4
Synacor » Zimbra Collaboration Suite » Version: 8.7.5

cpe:2.3:a:synacor:zimbra_collaboration_suite:8.7.5
Synacor » Zimbra Collaboration Suite » Version: 8.7.6

cpe:2.3:a:synacor:zimbra_collaboration_suite:8.7.6
Synacor » Zimbra Collaboration Suite » Version: 8.7.7

cpe:2.3:a:synacor:zimbra_collaboration_suite:8.7.7
Synacor » Zimbra Collaboration Suite » Version: 8.7.8

cpe:2.3:a:synacor:zimbra_collaboration_suite:8.7.8
Synacor » Zimbra Collaboration Suite » Version: 8.7.9

cpe:2.3:a:synacor:zimbra_collaboration_suite:8.7.9
Synacor » Zimbra Collaboration Suite » Version: 8.8.0

cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.0
Synacor » Zimbra Collaboration Suite » Version: 8.8.1

cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.1
Synacor » Zimbra Collaboration Suite » Version: 8.8.10

cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.10
Synacor » Zimbra Collaboration Suite » Version: 8.8.11

cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.11
Synacor » Zimbra Collaboration Suite » Version: 8.8.12

cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.12
Synacor » Zimbra Collaboration Suite » Version: 8.8.15

cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.15
Synacor » Zimbra Collaboration Suite » Version: 8.8.2

cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.2
Synacor » Zimbra Collaboration Suite » Version: 8.8.3

cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.3
Synacor » Zimbra Collaboration Suite » Version: 8.8.4

cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.4
Synacor » Zimbra Collaboration Suite » Version: 8.8.5

cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.5
Synacor » Zimbra Collaboration Suite » Version: 8.8.6

cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.6
Synacor » Zimbra Collaboration Suite » Version: 8.8.7

cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.7
Synacor » Zimbra Collaboration Suite » Version: 8.8.8

cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.8
Synacor » Zimbra Collaboration Suite » Version: 8.8.9

cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.9
Synacor » Zimbra Collaboration Suite » Version: 9.0.0

cpe:2.3:a:synacor:zimbra_collaboration_suite:9.0.0

Vulnerabilities

Vulnerable Software

Vulnerability Details CVE-2026-73576

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