CISA ADP Vulnrichment

Answer in brief

CVE-2026-73570 records a High severity (CVSS 8.9) vulnerability in CISA ADP Vulnrichment. The current sources mark it as known exploited. The current feed maps Zimbra/Collaboration (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Aug 13, 2026Updated Aug 24, 2026Source checked Sep 27, 2026First seen by HOL Aug 13, 2026Material review Aug 24, 2026

Upstream Advisory

Key facts

Risk: High · CVSS 8.9
Exploitation: Known exploited
Affected software: 2 mapped packages or products
Fix availability: Available

Why this deserves its current priority

CVSS is 8.9. Known-exploitation status makes exposure review time-sensitive. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Zimbra/Collaboration (generic). Check affected ranges and fixed versions before updating.

Affected products and reported versions
Product	Affected versions	Fixed versions
cpe:2.3:a:synacor:zimbra_collaboration_suite::::::::	Not reported	Not reported

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
Zimbra/Collaborationgeneric	>=0 <10.1.20	10.1.20

Recommended response

Check inventory. Check lockfiles and deployed manifests for Zimbra/Collaboration.
Review the reported fix. Update Zimbra/Collaboration to 10.1.20 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Aug 13, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Aug 24, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Aug 13, 2026
Added to CISA KEV
Aug 21, 2026
Evidence: source:kev:kev:kev:record

Sources and claim methodology

Upstream source description

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.

Quoted source text, attributed separately from HOL analysis.