How severe is CVE-2021-36744?

CVE-2021-36744 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-36744 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (37th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-36744?

CVE-2021-36744 primarily affects Trendmicro Maximum Security 2019. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-36744?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2021-36744 published?

CVE-2021-36744 was published on 2021-09-06 and last updated on 2026-06-17.

CVE-2021-36744

CVE-2021-36744 is a high-severity vulnerability in Trendmicro Maximum Security 2019 with a CVSS 3.x base score of 7.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-59.

Key facts

Severity: High (CVSS 3.x base score 7.8)
CVSS v2: 4.6
EPSS exploit prediction: 0% (37th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-59
Affected product: Trendmicro Maximum Security 2019
Published: 2021-09-06
Last modified: 2026-06-17

Description

Trend Micro Security (Consumer) 2021 and 2020 are vulnerable to a directory junction vulnerability which could allow an attacker to exploit the system to escalate privileges and create a denial of service.

Frequently asked questions

What is CVE-2021-36744?: Trend Micro Security (Consumer) 2021 and 2020 are vulnerable to a directory junction vulnerability which could allow an attacker to exploit the system to escalate privileges and create a denial of service.
How severe is CVE-2021-36744?: CVE-2021-36744 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-36744 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (37th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-36744?: CVE-2021-36744 primarily affects Trendmicro Maximum Security 2019. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-36744?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2021-36744 published?: CVE-2021-36744 was published on 2021-09-06 and last updated on 2026-06-17.

References

Affected products (5)

cpe:2.3:a:trendmicro:maximum_security_2019:15.0:*:*:*:*:*:*:*
cpe:2.3:a:trendmicro:maximum_security_2020:16.0:*:*:*:*:*:*:*
cpe:2.3:a:trendmicro:maximum_security_2021:17.0:*:*:*:*:*:*:*
cpe:2.3:a:trendmicro:maximum_security_2021:17.2:*:*:*:*:*:*:*
cpe:2.3:a:trendmicro:security_for_best_buy:2021:*:*:*:*:*:*:*

More vulnerabilities in Trendmicro Maximum Security 2019

CVE-2019-20357 — High (CVSS 7.8): A Persistent Arbitrary Code Execution vulnerability exists in the Trend Micro Security 2020 (v160 and 2019 (v15)…
CVE-2019-14686 — High (CVSS 7.8): A DLL hijacking vulnerability exists in the Trend Micro Security's 2019 consumer family of products (v15) Folder Shield…
CVE-2019-14685 — High (CVSS 7.8): A local privilege escalation vulnerability exists in Trend Micro Security 2019 (v15.0) in which, if exploited, would…
CVE-2020-24560 — High (CVSS 7.5): An incomplete SSL server certification validation vulnerability in the Trend Micro Security 2019 (v15) consumer family…
CVE-2020-15604 — High (CVSS 7.5): An incomplete SSL server certification validation vulnerability in the Trend Micro Security 2019 (v15) consumer family…
CVE-2019-19697 — Medium (CVSS 6.7): An arbitrary code execution vulnerability exists in the Trend Micro Security 2019 (v15) consumer family of products…

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