CVE-2020-2655: Vulnerability in the Java SE product of Oracle Java SE (component: JSSE). Supported versions that are affected are Java SE: 11.0.5 and 13.0.1. Difficu...

Description

Vulnerability in the Java SE product of Oracle Java SE (component: JSSE). Supported versions that are affected are Java SE: 11.0.5 and 13.0.1. Difficult to exploit vulnerability allows unauthenticated attacker with network access via HTTPS to compromise Java SE. Successful attacks of this vulnerability can result in unauthorized update, insert or delete access to some of Java SE accessible data as well as unauthorized read access to a subset of Java SE accessible data. Note: This vulnerability applies to Java deployments, typically in clients running sandboxed Java Web Start applications or sandboxed Java applets (in Java SE 8), that load and run untrusted code (e.g., code that comes from the internet) and rely on the Java sandbox for security. This vulnerability can also be exploited by using APIs in the specified Component, e.g., through a web service which supplies data to the APIs. CVSS 3.0 Base Score 4.8 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N).

Metrics

CVSS 3.1

4.8/10

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N

EPSS Probability

3.13%

86.2th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Oracle	Jdk	11.0.5
Oracle	Jdk	13.0.1
Oracle	Jre	11.0.5
Oracle	Jre	13.0.1
Debian	Debian Linux	9.0
Debian	Debian Linux	10.0
Redhat	Enterprise Linux	6.0
Redhat	Enterprise Linux	7.0
Redhat	Enterprise Linux	8.0

References

http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00050.html
https://access.redhat.com/errata/RHSA-2020:0122Patch, Third Party Advisory
https://access.redhat.com/errata/RHSA-2020:0128Patch, Third Party Advisory
https://access.redhat.com/errata/RHSA-2020:0232
https://seclists.org/bugtraq/2020/Jan/24Third Party Advisory
https://security.netapp.com/advisory/ntap-20200122-0003/Third Party Advisory
https://usn.ubuntu.com/4257-1/
https://www.debian.org/security/2020/dsa-4605Third Party Advisory
https://www.oracle.com/security-alerts/cpujan2020.htmlPatch, Vendor Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00050.html
https://access.redhat.com/errata/RHSA-2020:0122Patch, Third Party Advisory
https://access.redhat.com/errata/RHSA-2020:0128Patch, Third Party Advisory
https://access.redhat.com/errata/RHSA-2020:0232
https://seclists.org/bugtraq/2020/Jan/24Third Party Advisory
https://security.netapp.com/advisory/ntap-20200122-0003/Third Party Advisory
https://usn.ubuntu.com/4257-1/
https://www.debian.org/security/2020/dsa-4605Third Party Advisory
https://www.oracle.com/security-alerts/cpujan2020.htmlPatch, Vendor Advisory

Timeline

Published: Jan 15, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-2655?

Vulnerability in the Java SE product of Oracle Java SE (component: JSSE). Supported versions that are affected are Java SE: 11.0.5 and 13.0.1. Difficult to exploit vulnerability allows unauthenticated attacker with network access via HTTPS to compromise Java SE. Successful attacks of this vulnerability can result in unauthorized update, insert or delete access to some of Java SE accessible data as well as unauthorized read access to a subset of Java SE accessible data. Note: This vulnerability applies to Java deployments, typically in clients running sandboxed Java Web Start applications or sandboxed Java applets (in Java SE 8), that load and run untrusted code (e.g., code that comes from the internet) and rely on the Java sandbox for security. This vulnerability can also be exploited by using APIs in the specified Component, e.g., through a web service which supplies data to the APIs. CVSS 3.0 Base Score 4.8 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N).

How severe is CVE-2020-2655?

CVE-2020-2655 has a CVSS score of 4.8/10 (MEDIUM severity). The EPSS model estimates a 3.13% probability of exploitation in the next 30 days.

How do I fix CVE-2020-2655?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.