CVE-2021-36742
Trend Micro Multiple Products Improper Input Validation Vulnerability
This vulnerability is in the CISA Known Exploited Vulnerabilities catalog: attackers are using it. If you run Apex One, Apex One as a Service, and Worry-Free Business Security, fix it now.
CISA required action: Apply updates per vendor instructions.
US federal civilian agencies must remediate by Nov 17, 2021.
Patch status
No official fix confirmed yet
Until a fix ships, follow the vendor's mitigations and CISA's required action, limit exposure of affected systems, and watch this record for a patch.
Description
A improper input validation vulnerability in Trend Micro Apex One, Apex One as a Service, OfficeScan XG and Worry-Free Business Security 10.0 SP1 allows a local attacker to escalate privileges on affected installations. Please note: an attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability.
Source: NIST National Vulnerability Database. Official vulnerability data, reproduced as published.
Affected products
| Product | Vendor | Affected versions | Source |
|---|---|---|---|
| Apex One | Trend Micro | 2019 | NVD |
| Apex One, Apex One as a Service, and Worry-Free Business Security | Trend Micro | — | KEV |
| OfficeScan | Trend Micro | xg | NVD |
Sources: NVD = NIST National Vulnerability Database; KEV = CISA Known Exploited Vulnerabilities catalog.
Intelligence timeline
Developments from the last 30 days, newest first.
- CVSS scoredUpdateKEV
CVE-2021-36742 scored CVSS 7.8: Trend Micro Apex One, Apex One as a Service, and Worry-Free Business Security, Trend Micro Multiple Products Improper Input Validation Vulnerability
CISA lists this as exploited in the wild. Unpatched Apex One, Apex One as a Service, and Worry-Free Business Security systems are exposed to active attacks now.
Basis: NIST National Vulnerability Database
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Coverage
We have not published a story about this vulnerability yet.