Is CVE-2016-6797 in the CISA KEV catalog?

No. CVE-2016-6797 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2016-6797?

CVE-2016-6797 has a CVSS v3 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2016-6797?

CVE-2016-6797 has an EPSS score of 8.07% (94th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2016-6797?

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-2016-6797

HIGHEPSS 94th pctl

7.5

CVSS v3

NVD

Description

The ResourceLinkFactory implementation 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 and 6.0.0 to 6.0.45 did not limit web application access to global JNDI resources to those resources explicitly linked to the web application. Therefore, it was possible for a web application to access any global JNDI resource whether an explicit ResourceLink had been configured or not.

CWE-863Incorrect Authorization

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

ConfidentialityHigh

IntegrityNone

AvailabilityNone

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

Exploit Intelligence

8.07%probability of exploitation in 30 days

94thpercentile

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

References

Embed a live status badge for CVE-2016-6797

Markdown

[![CVE-2016-6797](https://tridentstack.com/cve/badge/CVE-2016-6797.svg)](https://tridentstack.com/cve/CVE-2016-6797)

HTML

<a href="https://tridentstack.com/cve/CVE-2016-6797"><img src="https://tridentstack.com/cve/badge/CVE-2016-6797.svg" alt="CVE-2016-6797"></a>

Find and fix vulnerabilities across your fleet

TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.

Start free

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.