Is CVE-2016-6794 in the CISA KEV catalog?

No. CVE-2016-6794 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2016-6794?

CVE-2016-6794 has a CVSS v3 base score of 5.3 (MEDIUM).

What is the EPSS score for CVE-2016-6794?

CVE-2016-6794 has an EPSS score of 7.15% (94th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2016-6794?

Upgrade libservlet2.5-java on ubuntu 16.04 to 6.0.45+dfsg-1ubuntu0.1 or later. Fixes are available for 6 affected products.

CVE & CISA-KEV Catalog

CVE-2016-6794

MEDIUMEPSS 94th pctl

5.3

CVSS v3

NVD

Description

When a SecurityManager is configured, a web application's ability to read system properties should be controlled by the SecurityManager. In Apache Tomcat 9.0.0.M1 to 9.0.0.M9, 8.5.0 to 8.5.4, 8.0.0.RC1 to 8.0.36, 7.0.0 to 7.0.70, 6.0.0 to 6.0.45 the system property replacement feature for configuration files could be used by a malicious web application to bypass the SecurityManager and read system properties that should not be visible.

How to fix

Remediation Available

libservlet2.5-javaUbuntu

Fixed in:6.0.45+dfsg-1ubuntu0.1USN-4557-1

libtomcat7-javaUbuntu

Fixed in:7.0.52-1ubuntu0.8USN-3177-1

libtomcat8-javaUbuntu

Fixed in:8.0.32-1ubuntu1.3USN-3177-1

tomcat6Ubuntu

Fixed in:6.0.45+dfsg-1ubuntu0.1USN-4557-1

tomcat7Ubuntu

Fixed in:7.0.52-1ubuntu0.8USN-3177-1

tomcat8Ubuntu

Fixed in:8.0.32-1ubuntu1.3USN-3177-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityLow

IntegrityNone

AvailabilityNone

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Exploit Intelligence

7.15%probability of exploitation in 30 days

94thpercentile

High risk: more likely to be exploited than 94% of all known CVEs.

References

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-05-13.