CVE & CISA-KEV CatalogNVD
CVE-2016-4970
HIGHEPSS 95th pctl7.5
CVSS v3
Description
handler/ssl/OpenSslEngine.java in Netty 4.0.x before 4.0.37.Final and 4.1.x before 4.1.1.Final allows remote attackers to cause a denial of service (infinite loop).
CVSS v3 Vector
Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityNone
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Exploit Intelligence
11.26%probability of exploitation in 30 days
95thpercentile
Very high risk: more likely to be exploited than 95% of all known CVEs.
References
- http://netty.io/news/2016/06/07/4-0-37-Final.html
- http://netty.io/news/2016/06/07/4-1-1-Final.html
- http://rhn.redhat.com/errata/RHSA-2017-0179.html
- http://rhn.redhat.com/errata/RHSA-2017-1097.html
- http://www.securityfocus.com/bid/96540
- https://bugzilla.redhat.com/show_bug.cgi?id=1343616
- https://github.com/netty/netty/pull/5364
- https://lists.apache.org/thread.html/afaa5860e3a6d327eb96c3d82cbd2f5996de815a16854ed1ad310144%40%3Ccommits.cassandra.apache.org%3E
- https://wiki.opendaylight.org/view/Security_Advisories
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Start freeThis 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.