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Zimbra SNMP Command Injection CVE-2026-73570 Exploited in Wild

2026-08-21 11:38 UTC · The Hacker News · read the source ↗ #zimbra#rce#active-exploitation
  • Engineer — Act: Active exploitation confirmed by CERT Polska plus a public PoC on GitHub makes this urgent regardless of the low EPSS score. Patch Zimbra Collaboration (ZCS) to the fixed release immediately; prioritize any internet-facing Zimbra instances.
  • SOC/IR — Act: Active in-the-wild exploitation of an email server RCE creates an assume-breach exposure window. Hunt Zimbra SNMP and application logs for anomalous command execution patterns since the PoC publication date, and pull any IOCs published by CERT Polska for sweeping.
  • Leader — Skip
  • Signals: CVE-2026-73570 — CISA KEV: not listed, EPSS 0.01, public PoC on GitHub
This entry was curated and judged by AI (Claude) with automated enrichment (CISA KEV / EPSS / public PoC). Verify against the original source before acting. Found a bad verdict? Report it — confirmed errors go to the corrections log.