How severe is CVE-2020-8600?

CVE-2020-8600 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-2020-8600 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (91st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-8600?

CVE-2020-8600 primarily affects Trendmicro Worry-free Business Security. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2020-8600?

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-2020-8600 published?

CVE-2020-8600 was published on 2020-03-18 and last updated on 2026-06-17.

CVE-2020-8600

CVE-2020-8600 is a critical-severity vulnerability in Trendmicro Worry-free Business Security with a CVSS 3.x base score of 9.8. 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-22.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 4% (91st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-22
Affected product: Trendmicro Worry-free Business Security
Published: 2020-03-18
Last modified: 2026-06-17

Description

Trend Micro Worry-Free Business Security (9.0, 9.5, 10.0) is affected by a directory traversal vulnerability that could allow an attacker to manipulate a key file to bypass authentication.

Frequently asked questions

What is CVE-2020-8600?: Trend Micro Worry-Free Business Security (9.0, 9.5, 10.0) is affected by a directory traversal vulnerability that could allow an attacker to manipulate a key file to bypass authentication.
How severe is CVE-2020-8600?: CVE-2020-8600 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-2020-8600 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (91st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-8600?: CVE-2020-8600 primarily affects Trendmicro Worry-free Business Security. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2020-8600?: 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-2020-8600 published?: CVE-2020-8600 was published on 2020-03-18 and last updated on 2026-06-17.

References

Affected products (4)

cpe:2.3:a:trendmicro:worry-free_business_security:9.0:sp3:*:*:*:*:*:*
cpe:2.3:a:trendmicro:worry-free_business_security:9.5:*:*:*:*:*:*:*
cpe:2.3:a:trendmicro:worry-free_business_security:10.0:-:*:*:*:*:*:*
cpe:2.3:a:trendmicro:worry-free_business_security:10.0:sp1:*:*:*:*:*:*

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