How severe is CVE-2020-27018?

CVE-2020-27018 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2020-27018 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (88th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-27018?

CVE-2020-27018 affects Trendmicro Interscan Messaging Security Virtual Appliance. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-27018?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2020-27018 published?

CVE-2020-27018 was published on 2020-11-09 and last updated on 2026-06-17.

CVE-2020-27018

CVE-2020-27018 is a medium-severity vulnerability in Trendmicro Interscan Messaging Security Virtual Appliance with a CVSS 3.x base score of 5.5. 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-918.

Key facts

Severity: Medium (CVSS 3.x base score 5.5)
CVSS v2: 2.1
EPSS exploit prediction: 4% (88th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-918
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 server side request forgery vulnerability which could allow an authenticated attacker to abuse the product's web server and grant access to web resources or parts of local files. An attacker must already have obtained authenticated privileges on the product to exploit this vulnerability.

Frequently asked questions

What is CVE-2020-27018?: Trend Micro InterScan Messaging Security Virtual Appliance (IMSVA) 9.1 is vulnerable to a server side request forgery vulnerability which could allow an authenticated attacker to abuse the product's web server and grant access to web resources or parts of local files. An attacker must already have obtained authenticated privileges on the product to exploit this vulnerability.
How severe is CVE-2020-27018?: CVE-2020-27018 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2020-27018 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (88th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-27018?: CVE-2020-27018 affects Trendmicro Interscan Messaging Security Virtual Appliance. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-27018?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-27018 published?: CVE-2020-27018 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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