How severe is CVE-2021-28647?

CVE-2021-28647 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-28647 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-2021-28647?

CVE-2021-28647 affects Trendmicro Password Manager. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-28647?

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-2021-28647 published?

CVE-2021-28647 was published on 2021-04-13 and last updated on 2026-06-17.

CVE-2021-28647

CVE-2021-28647 is a high-severity vulnerability in Trendmicro Password Manager 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-427.

Key facts

Severity: High (CVSS 3.x base score 7.8)
CVSS v2: 4.4
EPSS exploit prediction: 0% (37th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-427
Affected product: Trendmicro Password Manager
Published: 2021-04-13
Last modified: 2026-06-17

Description

Trend Micro Password Manager version 5 (Consumer) is vulnerable to a DLL Hijacking vulnerability which could allow an attacker to inject a malicious DLL file during the installation progress and could execute a malicious program each time a user installs a program.

Frequently asked questions

What is CVE-2021-28647?: Trend Micro Password Manager version 5 (Consumer) is vulnerable to a DLL Hijacking vulnerability which could allow an attacker to inject a malicious DLL file during the installation progress and could execute a malicious program each time a user installs a program.
How severe is CVE-2021-28647?: CVE-2021-28647 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-28647 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-2021-28647?: CVE-2021-28647 affects Trendmicro Password Manager. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-28647?: 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-2021-28647 published?: CVE-2021-28647 was published on 2021-04-13 and last updated on 2026-06-17.

References

https://helpcenter.trendmicro.com/en-us/article/TMKA-10282

Affected products (1)

cpe:2.3:a:trendmicro:password_manager:*:*:*:*:*:windows:*:*

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