cve.bz

CVE-2016-6817

7.5 highEPSS 7.2%

High (7.5) in apache tomcat. EPSS 7.2% chance of exploitation in the next 30 days. Fixed in org.apache.tomcat:tomcat 8.5.8, 9.0.0.M12.

The HTTP/2 header parser in Apache Tomcat 9.0.0.M1 to 9.0.0.M11 and 8.5.0 to 8.5.6 entered an infinite loop if a header was received that was larger than the available buffer. This made a denial of service attack possible.

Severity

CVSS 3.1

7.5 high
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS
7.2% chance of exploitation in the next 30 days; higher than 94% of CVEs (scores of 2026-10-31)
CWEs
CWE-119, CWE-835
Published
Modified
Record from
the NVD, synced

Affected

Packages (OSV)

AdvisoryEcosystemPackageAffectedFixed in
GHSA-698c-2x4j-g9gqMavenorg.apache.tomcat:tomcat>=9.0.0.M1 <9.0.0.M129.0.0.M12
GHSA-698c-2x4j-g9gqMavenorg.apache.tomcat:tomcat>=8.5.0 <8.5.88.5.8

References

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