Cyber Resilience

CVE-2021-42012

High

Published: 21 October 2021

Published
21 October 2021
Modified
21 November 2024
KEV Added
Patch
CVSS Score v3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.0042 62.2th percentile
Risk Priority 16 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2021-42012 is a high-severity Out-of-bounds Write (CWE-787) vulnerability in Trendmicro Apex One. Its CVSS base score is 7.8 (High).

Operationally, ranked in the top 37.8% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

A stack-based buffer overflow vulnerability in Trend Micro Apex One, Apex One as a Service and Worry-Free Business Security 10.0 SP1 could allow a local attacker to escalate privileges on affected installations. Please note: an attacker must first obtain the…

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ability to execute low-privileged code on the target system in order to exploit this vulnerability.

CWE(s)

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

trendmicro
apex one
2019
trendmicro
worry-free business security
10.0
trendmicro
worry-free business security services
all versions

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

addresses: CWE-787

Out-of-bounds writes that corrupt control flow or inject shellcode are rendered non-executable by the same memory protections.

References