Is CVE-2021-36742 actively exploited?

Yes. CVE-2021-36742 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, which means exploitation in the wild has been confirmed.

Can CVE-2021-36742 be exploited remotely?

The attack vector of CVE-2021-36742 has not been classified yet.

What is the CVSS score of CVE-2021-36742?

CVE-2021-36742 has not received a CVSS score yet.

HOME VULNERABILITIESCVE-2021-36742

HIGHCISA KEVIN THE WILD

CVE-2021-36742

Published: November 3, 2021

EPSS:1.87%probability of exploitation in 30 daysPercentile:82.8th

Official Description

Trend Micro Apex One, Apex One as a Service, and Worry-Free Business Security contain an improper input validation vulnerability that allows for privilege escalation.

NVD Source

CISA KEV Advisory

Trend Micro Multiple Products Improper Input Validation Vulnerability

Trend Micro Apex One, Apex One as a Service, and Worry-Free Business Security contain an improper input validation vulnerability that allows for privilege escalation.

Added to KEV: 2021-11-03Federal patch deadline: 2021-11-17

Required Action (CISA)

Apply updates per vendor instructions.

Risk Analysis

This high-severity vulnerability in Trend Micro Apex One, Apex One as a Service, and Worry-Free Business Security allows for privilege escalation due to improper input validation. Its inclusion in CISA's KEV catalog and active exploitation in the wild make it a critical concern, even with a low EPSS score of 0.01869.

This vulnerability is actively being exploited in the wild, as confirmed by its presence in CISA's KEV catalog. Attackers are leveraging this flaw to gain elevated privileges.

Recommended Action

Apply the latest security updates for Trend Micro Apex One, Apex One as a Service, and Worry-Free Business Security to address the improper input validation vulnerability. Regularly update all security software to prevent privilege escalation.

Generated by the CTIWATCH analysis pipeline from this CVE's metadata (CVSS, EPSS, KEV status, exploit intelligence). Verify against vendor advisories before acting.

Technical Analysis

CVE-2021-36742 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

CISA has added CVE-2021-36742 to the Known Exploited Vulnerabilities (KEV) catalog, confirming active exploitation in the wild. U.S. federal agencies are required to patch this within the mandated timeframe, and all organizations should treat remediation as urgent.