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HIGH

CVE-2021-28165

CVSS v3

7.5

HIGH

EPSS Score

53.9 %

exploit probability, as of 2026-10-19

CISA KEV

No

known exploited

Exploitation

—

SSVC status

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Affected and fixed versions

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • jenkinsBitnamiall versions · fixed in 2.286.0
  • org.eclipse.jetty:jetty-serverMavenfrom 11.0.0 · fixed in 11.0.2

Vendor advisories

  • CVE-2021-28165 Red Hat Product Security54 products fixed · 55 known affected

    jetty: Resource exhaustion when receiving an invalid large TLS frame

    jetty-annotations as a component of Red Hat Enterprise Linux 7 · jetty-ant as a component of Red Hat Enterprise Linux 7 · jetty-client as a component of Red Hat Enterprise Linux 7

  • ICSMA-24-200-01 CISA1 known affected

    Philips Vue PACS (Update A)

    Philips Vue PACS: <12.2.8.410

  • RHSA-2022:6407 Red Hat Product Security1 product fixed

    Red Hat Security Advisory: Red Hat Integration Camel-K 1.8 security update

  • RHSA-2021:4767 Red Hat Product Security1 product fixed

    Red Hat Security Advisory: Red Hat Integration Camel Extensions for Quarkus GA security update

  • RHSA-2021:3700 Red Hat Product Security1 product fixed

    Red Hat Security Advisory: Red Hat AMQ Broker 7.9.0 release and security update

  • RHSA-2021:3225 Red Hat Product Security1 product fixed

    Red Hat Security Advisory: Red Hat AMQ Streams 1.8.0 release and security update

5 more advisories

Full record on NVD

Description

In Eclipse Jetty 7.2.2 to 9.4.38, 10.0.0.alpha0 to 10.0.1, and 11.0.0.alpha0 to 11.0.1, CPU usage can reach 100% upon receiving a large invalid TLS frame.

Technical details

Published
2021-04-01

Frequently asked questions

What is CVE-2021-28165?

In Eclipse Jetty 7.2.2 to 9.4.38, 10.0.0.alpha0 to 10.0.1, and 11.0.0.alpha0 to 11.0.1, CPU usage can reach 100% upon receiving a large invalid TLS frame.

Is CVE-2021-28165 actively exploited?

Active exploitation of CVE-2021-28165 has not been confirmed. Its EPSS score was 53.9% on 2026-10-19, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2021-28165?

CVE-2021-28165 has a CVSS v3 base score of 7.5 (HIGH severity).

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