High
Security advisory
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 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.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2026-73570
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 3 Nov 2026, 18:07 UTC · Revision 1
Source evidence
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 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.
osv:CVE-2026-73570
Complete source record
{
"id": "0a4d6772ce75eeeaf87568bdfc2311b801275704d63fd758d1824bd3a7e1976f",
"url": "https://osv.dev/vulnerability/CVE-2026-73570",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2026-73570",
"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 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.",
"evidence": "osv:CVE-2026-73570",
"products": [],
"severity": "high",
"structured": {
"id": "CVE-2026-73570",
"aliases": [
"CVE-2026-73570"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:L"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/zimbra/zm-build",
"type": "GIT",
"events": [
{
"introduced": "0"
},
{
"fixed": "c4837c66360979d757890271f6c976727e71bcad"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:synacor:zimbra_collaboration_suite:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "0"
},
{
"fixed": "10.1.20"
}
],
"source": "CPE_RANGE"
}
]
}
}
],
"versions": [
"10.1.16",
"10.1.14",
"10.1.13",
"10.1.10",
"10.1.6",
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"database_specific": {
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}
},
{
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],
"versions": [
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"10.1.0.beta",
"10.0.0-GA",
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{
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{
"fixed": "10.1.20"
}
],
"source": "CPE_RANGE"
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],
"versions": [
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"10.1.13",
"10.1.4",
"10.1.1",
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"10.0.0-GA",
"10.0.0",
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"8.8.12",
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"8.8.7",
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"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-73570.json"
}
}
],
"modified": "2026-10-28T02:30:31.049882687Z",
"provider": "osv",
"references": [
"https://wiki.zimbra.com/wiki/Security_Center",
"https://wiki.zimbra.com/wiki/Zimbra_Security_Advisories",
"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-73570",
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/73xxx/CVE-2026-73570.json",
"https://moje.cert.pl/komunikaty/2026/145/aktywnie-wykorzystywana-podatnosc-w-zimbra-collaboration-suite/",
"https://nvd.nist.gov/vuln/detail/CVE-2026-73570"
],
"provider_metadata": {
"cwe_ids": [
"CWE-78"
],
"cna_assigner": "mitre",
"unresolved_ranges": [
{
"extracted_events": [
{
"range": [
{
"fixed": "10.1.20"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StandardRange"
}
]
}
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/73xxx/CVE-2026-73570.json"
}
},
"related_cves": [
{
"value": "CVE-2026-73570",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 498232,
"published_at": "2026-08-13T15:19:42.195+00:00"
}