Is CVE-2016-1240 in the CISA KEV catalog?

No. CVE-2016-1240 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2016-1240?

CVE-2016-1240 has a CVSS v3 base score of 7.8 (HIGH).

What is the EPSS score for CVE-2016-1240?

CVE-2016-1240 has an EPSS score of 9.78% (95th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2016-1240?

Upgrade libservlet2.5-java on ubuntu 16.04 to 6.0.45+dfsg-1ubuntu0.2 or later. Fixes are available for 6 affected products.

CVE & CISA-KEV Catalog

CVE-2016-1240

HIGHEPSS 95th pctl

7.8

CVSS v3

NVD

Description

The Tomcat init script in the tomcat7 package before 7.0.56-3+deb8u4 and tomcat8 package before 8.0.14-1+deb8u3 on Debian jessie and the tomcat6 and libtomcat6-java packages before 6.0.35-1ubuntu3.8 on Ubuntu 12.04 LTS, the tomcat7 and libtomcat7-java packages before 7.0.52-1ubuntu0.7 on Ubuntu 14.04 LTS, and tomcat8 and libtomcat8-java packages before 8.0.32-1ubuntu1.2 on Ubuntu 16.04 LTS allows local users with access to the tomcat account to gain root privileges via a symlink attack on the Catalina log file, as demonstrated by /var/log/tomcat7/catalina.out.

CWE-20Improper Input Validation

How to fix

Remediation Available

libservlet2.5-javaUbuntu

Fixed in:6.0.45+dfsg-1ubuntu0.2USN-3081-2

libtomcat7-javaUbuntu

Fixed in:7.0.52-1ubuntu0.7USN-3081-1

libtomcat8-javaUbuntu

Fixed in:8.0.32-1ubuntu1.2USN-3081-1

tomcat6Ubuntu

Fixed in:6.0.45+dfsg-1ubuntu0.2USN-3081-2

tomcat7Ubuntu

Fixed in:7.0.52-1ubuntu0.7USN-3081-1

tomcat8Ubuntu

Fixed in:8.0.32-1ubuntu1.2USN-3081-1

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 VectorLocal

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

9.78%probability of exploitation in 30 days

95thpercentile

High risk: more likely to be exploited than 95% of all known CVEs.

References

Third-Party Advisory4

Other references10

Related Vulnerabilities

Other CWE-20 (Improper Input Validation) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2024-3400	Critical	10.0	100%	KEV + Ransom	-
CVE-2021-45105	Medium	5.9	100%	-	Fix
CVE-2021-44228	Critical	10.0	100%	KEV + Ransom	Fix
CVE-2021-21985	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2018-7600	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2020-3452	High	7.5	100%	KEV	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 2026-05-06.