{"id":"CVE-2026-73570","title":"A remote code execution vulnerability exists in Zimbra Collaboration (ZCS) before 10.1.20 when the optional zimbra-snmp package is installed and SNMP notifications are enabled","summary":"A remote code execution vulnerability exists in Zimbra Collaboration (ZCS) before 10.1.20 when the optional zimbra-snmp package is installed and SNMP notifications are enabled. Due to improper sanitization of untrusted input during SNMP …","severity":"high","cvss":8.9,"cvssVector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:L","cwe":["CWE-78"],"vendor":"synacor","product":"zimbra_collaboration_suite","affected":["zimbra_collaboration_suite < 10.1.20"],"patched":["zimbra_collaboration_suite 10.1.20"],"published":"2026-08-13","updated":"2026-08-22","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-73570","references":[{"url":"https://wiki.zimbra.com/wiki/Security_Center","label":"cve@mitre.org"},{"url":"https://wiki.zimbra.com/wiki/Zimbra_Security_Advisories","label":"cve@mitre.org"},{"url":"https://moje.cert.pl/komunikaty/2026/145/aktywnie-wykorzystywana-podatnosc-w-zimbra-collaboration-suite/","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-73570","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"tags":["nvd","kev","in-the-wild","exploit-available"],"epss":0.32383,"epssPercentile":0.98254,"kev":true,"kevDateAdded":"2026-08-21","kevDueDate":"2026-08-24","kevRansomware":false,"exploited":true,"ingestedAt":"2026-08-22T13:32:36.086Z","exploits":{"github":8,"githubRepos":["https://github.com/HORKimhab/CVE-2026-73570","https://github.com/gabrielunknown/CVE-2026-73570","https://github.com/jishino567/CVE-2026-73570"],"nuclei":["network/cves/2026/CVE-2026-73570"],"checkedAt":"2026-09-23T07:14:46.205Z"},"exploitAvailable":true,"slug":"CVE-2026-73570","body":"## Overview\n\nA remote code execution vulnerability exists in Zimbra Collaboration (ZCS) before 10.1.20 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.\n\n## Affected\n\n- `zimbra_collaboration_suite < 10.1.20`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `zimbra_collaboration_suite 10.1.20`","depth":"abyssal","depthScore":80,"depthScoreParts":{"impact":49,"likelihood":6.5,"exploitation":25,"ransomware":0},"changes":[{"seq":5467,"id":"CVE-2026-73570","ts":1788887285996,"field":"exploit_available","old":"false","new":"true"},{"seq":4350,"id":"CVE-2026-73570","ts":1788886399551,"field":"exploit_available","old":"true","new":"false"},{"seq":3075,"id":"CVE-2026-73570","ts":1788883062836,"field":"exploit_available","old":"false","new":"true"},{"seq":2104,"id":"CVE-2026-73570","ts":1788882467636,"field":"exploit_available","old":"true","new":"false"},{"seq":1170,"id":"CVE-2026-73570","ts":1788881904614,"field":"exploit_available","old":"false","new":"true"},{"seq":219,"id":"CVE-2026-73570","ts":1788469612301,"field":"epss","old":"0.20528","new":"0.32383"},{"seq":202,"id":"CVE-2026-73570","ts":1787863460171,"field":"epss","old":"0.01506","new":"0.20528"}]}