CVE-2019-18187
Actively exploited. CVE-2019-18187 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2021-11-03) — exploitation has been observed in the wild, and US federal agencies are required to remediate it under BOD 22-01. Treat patching as urgent.
Trend Micro OfficeScan contains a directory traversal vulnerability by extracting files from a zip file to a specific folder on the OfficeScan server, leading to remote code execution.
CSIRTS triage
- What
- A directory traversal vulnerability allows for remote code execution by extracting files from a zip file to a specific folder.
- Who is affected
- Deployments of Trend Micro OfficeScan.
- Urgency
- Immediate action is necessary as the vulnerability is actively exploited and rated critical.
- Action
- Update to the latest version of OfficeScan.
AI-assisted analysis generated from the source advisory — verify against the original.
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Exploitation outlook
- Exploitation confirmedAlready exploited in the wild (CISA KEV) — the prediction phase is over. Patch now. Riskier than 98% of all EPSS-scored CVEs.
Advisory coverage (1)
- criticalexploitedCVE-2019-18187: Trend Micro OfficeScan Directory Traversal Vulnerabilitycisa-kev · 2021-11-03
External references
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