SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2016-5018

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 a malicious web application was able to bypass a configured SecurityManager via a Tomcat utility method that was accessible to web…

CRITICAL 9.1EPSS 10.3%

Does this matter?

EPSS puts the probability of exploitation in the next 30 days at 10.3%, higher than 96% of all known CVEs. Patch or mitigate before the next change window.

Description

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 a malicious web application was able to bypass a configured SecurityManager via a Tomcat utility method that was accessible to web applications.

CVSS 3.1
9.1 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
EPSS
10.30% probability · 96th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Affected
apache/tomcat · netapp/oncommand insight · netapp/oncommand shift · netapp/snap creator framework · canonical/ubuntu linux · debian/debian linux · redhat/jboss enterprise application platform · redhat/jboss enterprise web server · redhat/enterprise linux desktop · redhat/enterprise linux eus · redhat/enterprise linux server · redhat/enterprise linux server aus · redhat/enterprise linux server tus · redhat/enterprise linux workstation · oracle/tekelec platform distribution
Source
security@apache.org
EPSS trend
0%8%15%4 November 2026: 10.30%4 November 20264 November 2026

EPSS 10.3% since 4 November 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

References

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.