How severe is CVE-2020-27016?

CVE-2020-27016 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2020-27016 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (77th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-27016?

CVE-2020-27016 affects Trendmicro Interscan Messaging Security Virtual Appliance. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-27016?

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-2020-27016 published?

CVE-2020-27016 was published on 2020-11-09 and last updated on 2026-06-17.

CVE-2020-27016

CVE-2020-27016 is a high-severity vulnerability in Trendmicro Interscan Messaging Security Virtual Appliance with a CVSS 3.x base score of 8.8. 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-352.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 6.8
EPSS exploit prediction: 2% (77th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-352
Affected product: Trendmicro Interscan Messaging Security Virtual Appliance
Published: 2020-11-09
Last modified: 2026-06-17

Description

Trend Micro InterScan Messaging Security Virtual Appliance (IMSVA) 9.1 is vulnerable to a cross-site request forgery (CSRF) vulnerability which could allow an attacker to modify policy rules by tricking an authenticated administrator into accessing an attacker-controlled web page. An attacker must already have obtained product administrator/root privileges to exploit this vulnerability.

Frequently asked questions

What is CVE-2020-27016?: Trend Micro InterScan Messaging Security Virtual Appliance (IMSVA) 9.1 is vulnerable to a cross-site request forgery (CSRF) vulnerability which could allow an attacker to modify policy rules by tricking an authenticated administrator into accessing an attacker-controlled web page. An attacker must already have obtained product administrator/root privileges to exploit this vulnerability.
How severe is CVE-2020-27016?: CVE-2020-27016 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2020-27016 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (77th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-27016?: CVE-2020-27016 affects Trendmicro Interscan Messaging Security Virtual Appliance. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-27016?: 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-2020-27016 published?: CVE-2020-27016 was published on 2020-11-09 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:trendmicro:interscan_messaging_security_virtual_appliance:*:*:*:*:*:*:*:*

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