Improper input validation in Microsoft Windows
CVE-2021-36742
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 att…
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
EPSS: 0.015 (71.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Microsoft Windows
- Trend Micro Apex One — versions 2019, SaaS
- Trend Micro Officescan — versions XG SP1
- Trend Micro Worry-free Business Security — versions 10.0 SP1
- Trendmicro Apex_one — versions 2019
- Trendmicro Officescan — versions xg
- Trendmicro Officescan_business_security — versions 10.0
- Trendmicro Worry-free_business_security — versions 10.0
Weakness classification (CWE)
CISA KEV (Known Exploited Vulnerabilities)
This CVE is on the CISA KEV catalog, added on . CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.
BOD 22-01 due date: .
Required action: Apply updates per vendor instructions.
Public proof-of-concept exploits
References
- security@trendmicro.com (x_refsource_MISC, Vendor Advisory)
- security@trendmicro.com (x_refsource_MISC, Vendor Advisory)
- security@trendmicro.com (x_refsource_MISC, Vendor Advisory)
- security@trendmicro.com (x_refsource_MISC, Vendor Advisory)
- 134c704f-9b21-4f2e-91b3-4a467353bcc0 (US Government Resource)
Frequently asked questions
- What is CVE-2021-36742?
- CVE-2021-36742 is a high-severity vulnerability in Microsoft Windows, classified under Improper Input Validation. CVSS score: 7.8/10. Published 2021-07-29.
- How severe is CVE-2021-36742?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2021-36742 known to be exploited?
- Yes. CVE-2021-36742 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2021-11-03), indicating it is being actively exploited. 4 public proof-of-concept repositories are indexed.