How severe is CVE-2020-27017?

CVE-2020-27017 has a CVSS 3.x base score of 4.9, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2020-27017 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 6% (93rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-27017?

CVE-2020-27017 affects Trendmicro Interscan Messaging Security Virtual Appliance. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-27017?

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

When was CVE-2020-27017 published?

CVE-2020-27017 was published on 2020-11-09 and last updated on 2026-06-17.

CVE-2020-27017

CVE-2020-27017 is a medium-severity vulnerability in Trendmicro Interscan Messaging Security Virtual Appliance with a CVSS 3.x base score of 4.9. 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-611.

Key facts

Severity: Medium (CVSS 3.x base score 4.9)
CVSS v2: 4.0
EPSS exploit prediction: 6% (93rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-611
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 an XML External Entity Processing (XXE) vulnerability which could allow an authenticated administrator to read arbitrary local files. An attacker must already have obtained product administrator/root privileges to exploit this vulnerability.

Frequently asked questions

What is CVE-2020-27017?: Trend Micro InterScan Messaging Security Virtual Appliance (IMSVA) 9.1 is vulnerable to an XML External Entity Processing (XXE) vulnerability which could allow an authenticated administrator to read arbitrary local files. An attacker must already have obtained product administrator/root privileges to exploit this vulnerability.
How severe is CVE-2020-27017?: CVE-2020-27017 has a CVSS 3.x base score of 4.9, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2020-27017 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 6% (93rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-27017?: CVE-2020-27017 affects Trendmicro Interscan Messaging Security Virtual Appliance. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-27017?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-27017 published?: CVE-2020-27017 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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Other CWE-611 (Improper Restriction of XML External Entity Reference (XXE)) vulnerabilities

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CVE-2018-1000838 — Critical (CVSS 10.0): autopsy version <= 4.9.0 contains a XML External Entity (XXE) vulnerability in CaseMetadata XML Parser that can result…
CVE-2018-1000837 — Critical (CVSS 10.0): UML Designer version <= 8.0.0 contains a XML External Entity (XXE) vulnerability in XML parser for plugins that can…
CVE-2018-1000835 — Critical (CVSS 10.0): KeePassDX version <= 2.5.0.0beta17 contains a XML External Entity (XXE) vulnerability in kdbx file parser that can…

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