Is CVE-2016-8745 in the CISA KEV catalog?

No. CVE-2016-8745 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2016-8745?

CVE-2016-8745 has a CVSS v3 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2016-8745?

CVE-2016-8745 has an EPSS score of 16.04% (97th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2016-8745?

Upgrade libtomcat7-java on ubuntu 14.04 to 7.0.52-1ubuntu0.8 or later. Fixes are available for 4 affected products.

CVE & CISA-KEV Catalog

CVE-2016-8745

HIGHEPSS 97th pctl

7.5

CVSS v3

NVD

Description

A bug in the error handling of the send file code for the NIO HTTP connector in Apache Tomcat 9.0.0.M1 to 9.0.0.M13, 8.5.0 to 8.5.8, 8.0.0.RC1 to 8.0.39, 7.0.0 to 7.0.73 and 6.0.16 to 6.0.48 resulted in the current Processor object being added to the Processor cache multiple times. This in turn meant that the same Processor could be used for concurrent requests. Sharing a Processor can result in information leakage between requests including, not not limited to, session ID and the response body. The bug was first noticed in 8.5.x onwards where it appears the refactoring of the Connector code for 8.5.x onwards made it more likely that the bug was observed. Initially it was thought that the 8.5.x refactoring introduced the bug but further investigation has shown that the bug is present in all currently supported Tomcat versions.

CWE-388

How to fix

Remediation Available

libtomcat7-javaUbuntu

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

libtomcat8-javaUbuntu

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

tomcat7Ubuntu

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

tomcat8Ubuntu

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

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

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

Exploit Intelligence

16.04%probability of exploitation in 30 days

97thpercentile

Very high risk: more likely to be exploited than 97% of all known CVEs.

References

Related Vulnerabilities

Other CWE-388 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2018-1002105	Critical	9.8	87%	-	Fix
CVE-2018-0155	High	8.6	7.9%	KEV	-
CVE-2016-9778	High	7.5	6.8%	-	-
CVE-2014-9841	Critical	9.8	3.9%	-	Fix
CVE-2014-9826	Critical	9.8	3.7%	-	Fix
CVE-2017-5401	Critical	9.8	3.1%	-	Fix

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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.