How severe is CVE-2016-3987?

CVE-2016-3987 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2016-3987 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 22% (97th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2016-3987?

CVE-2016-3987 affects Trendmicro Password Manager. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2016-3987?

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

When was CVE-2016-3987 published?

CVE-2016-3987 was published on 2016-04-12 and last updated on 2026-06-17.

CVE-2016-3987

CVE-2016-3987 is a critical-severity vulnerability in Trendmicro Password Manager with a CVSS 3.x base score of 9.8. Its EPSS exploit-prediction score of 22% places it in the 97th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-284.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 10.0
EPSS exploit prediction: 22% (97th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-284
Affected product: Trendmicro Password Manager
Published: 2016-04-12
Last modified: 2026-06-17

Description

The HTTP server in Trend Micro Password Manager allows remote web servers to execute arbitrary commands via the url parameter to (1) api/openUrlInDefaultBrowser or (2) api/showSB.

Frequently asked questions

What is CVE-2016-3987?: The HTTP server in Trend Micro Password Manager allows remote web servers to execute arbitrary commands via the url parameter to (1) api/openUrlInDefaultBrowser or (2) api/showSB.
How severe is CVE-2016-3987?: CVE-2016-3987 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2016-3987 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 22% (97th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2016-3987?: CVE-2016-3987 affects Trendmicro Password Manager. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2016-3987?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2016-3987 published?: CVE-2016-3987 was published on 2016-04-12 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:trendmicro:password_manager:-:*:*:*:*:*:*:*

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