CVE-2021-36742
Last modified
CVE-2021-36742 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. 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.. CISA has confirmed active exploitation in the wild. EPSS estimates a 1.48% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Exploitation Status
This vulnerability is listed in CISA’s Known Exploited Vulnerabilities catalog, confirming active exploitation in the wild. Federal agencies must remediate by .
Weakness Enumeration
Affected Software
| Vendor | Product | Versions | Update |
|---|---|---|---|
| Trendmicro | Officescan | xg | Sp1 |
| Trendmicro | Officescan Business Security | 10.0 | Sp1 |
| Trendmicro | Apex One | 2019 | — |
| Trendmicro | Worry-Free Business Security | 10.0 | Sp1 |
References
- https://success.trendmicro.com/jp/solution/000287796Vendor Advisory
- https://success.trendmicro.com/jp/solution/000287815Vendor Advisory
- https://success.trendmicro.com/solution/000287819Vendor Advisory
- https://success.trendmicro.com/solution/000287820Vendor Advisory
- https://success.trendmicro.com/jp/solution/000287796Vendor Advisory
- https://success.trendmicro.com/jp/solution/000287815Vendor Advisory
- https://success.trendmicro.com/solution/000287819Vendor Advisory
- https://success.trendmicro.com/solution/000287820Vendor Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-36742US Government Resource
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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