Detections
Analytics
Zimbra Collaboration Server 10.1.x < 10.1.20 Multiple Vulnerabilities
high Nessus Plugin ID 329328
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Synopsis
The remote web server contains a web application that is affected by multiple vulnerabilities.Description
According to its self-reported version number, Zimbra Collaboration Server is affected by multiple vulnerabilities, including:- A remote code execution vulnerability exists when the optional zimbra-snmp package is installed and SNMP notifications are enabled. Due to improper sanitization of untrusted input during SNMP notification processing, an unauthenticated attacker can send specially crafted SMTP requests that may result in execution of arbitrary operating system commands as the Zimbra user. (CVE-2026-73570)
- A security issue in the EWS extension related to access controls. (CVE-2026-10631)
- An authorization issue in mailbox delegation. (CVE-2026-50054)
Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.
Solution
Upgrade to version 10.1.20 or later.See Also
Plugin Details
Severity: High
ID: 329328
File Name: zimbra_10_1_20.nasl
Version: 1.4
Type: Combined
Agent: unix
Family: CGI abuses
Published: 7/24/2026
Updated: 8/27/2026
Supported Sensors: Nessus Agent, Nessus
Risk Information
VPR
Risk Factor: Critical
Score: 9.3
Percentile: 99.81
CVSS v2
Risk Factor: High
Base Score: 7.3
Temporal Score: 6
Vector: CVSS2#AV:N/AC:H/Au:N/C:C/I:C/A:P
CVSS Score Source: CVE-2026-73570
CVSS v3
Risk Factor: High
Base Score: 8.9
Temporal Score: 8.3
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:L
Temporal Vector: CVSS:3.0/E:F/RL:O/RC:C
Vulnerability Information
CPE: cpe:/a:zimbra:collaboration_suite
Required KB Items: installed_sw/zimbra_zcs
Exploit Available: true
Exploit Ease: Exploits are available
Patch Publication Date: 7/20/2026
Vulnerability Publication Date: 7/20/2026
Reference Information
CVE: CVE-2026-10631, CVE-2026-50054, CVE-2026-50055, CVE-2026-73570
CWE: 78
IAVA: 2026-A-0761