CVE-2026-73570 Details
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.
View at NVD
Exploit prediction scoring system (EPSS) score for CVE-2026-73570
EPSS (Exploit Prediction Scoring System): EPSS predicts the likelihood that a vulnerability will be exploited in the wild. A higher percentage means a greater chance of an exploit occurring. The EPSS model produces a probability score between 0 and 1 (0 and 100%).
32.38 Probability of exploitation activity being observed over the next 30 days (98th percentile)
CVSS score for CVE-2026-73570
CVSS (Common Vulnerability Scoring System): An open framework owned and managed by FIRST.Org, Inc. that assigns a numerical score from 0 to 10 to software vulnerabilities to indicate their severity.
8.9 High
Products affected by CVE-2026-73570
Zimbra Collaboration Suite 8.6.0
Zimbra Collaboration Suite 8.7.11
Zimbra Collaboration Suite 8.8.10
Zimbra Collaboration Suite 8.8.11
Zimbra Collaboration Suite 8.8.12
DVE Score by Bitsight AI
DVE scores complement traditional static scoring systems like CVSS with Bitsight AI powered real-time threat intelligence and underground cyber criminal activity so that security teams can reduce alert fatigue and focus on vulnerabilities most likely to be exploited.
Critical
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CVE-2026-73570 Global Footprint

Top 10 Identified Countries

Country Observations Percentage
ID 1,039 9.48%
RU 971 8.86%
US 755 6.89%
BR 718 6.55%
VN 579 5.28%
DE 512 4.67%
IN 491 4.48%
FR 465 4.24%
IT 330 3.01%
BD 314 2.86%

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CVE-2026-73570 Industry Footprint

Top 10 Identified Industries

*Service provider organizations (typically Technology and Telecommunications) are disproportionally represented in the results given their upstream ownership of end-user infrastructure. See our FAQs.

Industry* Observations Percentage
Telecommunications 2,472 45.94%
Technology 2,368 44.01%
Government/Politics 182 3.38%
Business Services 74 1.38%
Education 73 1.36%
Transportation 35 0.65%
Engineering 25 0.46%
Energy/Resources 23 0.43%
Finance 17 0.32%
Media/Entertainment 14 0.26%

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