How severe is CVE-2020-2778?

CVE-2020-2778 has a CVSS 3.x base score of 3.7, rated low severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2020-2778 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (81st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-2778?

CVE-2020-2778 primarily affects Oracle Jdk. In total, 117 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2020-2778?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2020-2778 published?

CVE-2020-2778 was published on 2020-04-15 and last updated on 2026-06-17.

CVE-2020-2778

CVE-2020-2778 is a low-severity vulnerability in Oracle Jdk with a CVSS 3.x base score of 3.7. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Low (CVSS 3.x base score 3.7)
CVSS v2: 4.3
EPSS exploit prediction: 2% (81st percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Oracle Jdk
Published: 2020-04-15
Last modified: 2026-06-17

Description

Vulnerability in the Java SE product of Oracle Java SE (component: JSSE). Supported versions that are affected are Java SE: 11.0.6 and 14. 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 read access to a subset of Java SE accessible data. Note: Applies to client and server deployment of Java. This vulnerability can be exploited through sandboxed Java Web Start applications and sandboxed Java applets. It can also be exploited by supplying data to APIs in the specified Component without using sandboxed Java Web Start applications or sandboxed Java applets, such as through a web service. CVSS 3.0 Base Score 3.7 (Confidentiality impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N).

Frequently asked questions

What is CVE-2020-2778?: Vulnerability in the Java SE product of Oracle Java SE (component: JSSE). Supported versions that are affected are Java SE: 11.0.6 and 14. 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 read access to a subset of Java SE accessible data. Note: Applies to client and server deployment of Java. This vulnerability can be exploited through sandboxed Java Web Start applications and sandboxed Java applets. It can also be exploited by supplying data to APIs in the specified Component without using sandboxed Java Web Start applications or sandboxed Java applets, such as through a web service. CVSS 3.0 Base Score 3.7 (Confidentiality impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N).
How severe is CVE-2020-2778?: CVE-2020-2778 has a CVSS 3.x base score of 3.7, rated low severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2020-2778 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (81st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-2778?: CVE-2020-2778 primarily affects Oracle Jdk. In total, 117 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2020-2778?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-2778 published?: CVE-2020-2778 was published on 2020-04-15 and last updated on 2026-06-17.

References

Affected products (117)

cpe:2.3:a:oracle:jdk:11.0.6:*:*:*:*:*:*:*
cpe:2.3:a:oracle:jdk:14.0.0:*:*:*:*:*:*:*
cpe:2.3:a:oracle:jre:11.0.6:*:*:*:*:*:*:*
cpe:2.3:a:oracle:jre:14.0.0:*:*:*:*:*:*:*
cpe:2.3:a:oracle:openjdk:*:*:*:*:*:*:*:*
cpe:2.3:a:oracle:openjdk:7:-:*:*:*:*:*:*
cpe:2.3:a:oracle:openjdk:7:update1:*:*:*:*:*:*
cpe:2.3:a:oracle:openjdk:7:update10:*:*:*:*:*:*
cpe:2.3:a:oracle:openjdk:7:update101:*:*:*:*:*:*
cpe:2.3:a:oracle:openjdk:7:update11:*:*:*:*:*:*
cpe:2.3:a:oracle:openjdk:7:update111:*:*:*:*:*:*
cpe:2.3:a:oracle:openjdk:7:update121:*:*:*:*:*:*
cpe:2.3:a:oracle:openjdk:7:update13:*:*:*:*:*:*
cpe:2.3:a:oracle:openjdk:7:update131:*:*:*:*:*:*
cpe:2.3:a:oracle:openjdk:7:update141:*:*:*:*:*:*
cpe:2.3:a:oracle:openjdk:7:update15:*:*:*:*:*:*
cpe:2.3:a:oracle:openjdk:7:update151:*:*:*:*:*:*
cpe:2.3:a:oracle:openjdk:7:update161:*:*:*:*:*:*
cpe:2.3:a:oracle:openjdk:7:update17:*:*:*:*:*:*
cpe:2.3:a:oracle:openjdk:7:update171:*:*:*:*:*:*
cpe:2.3:a:oracle:openjdk:7:update181:*:*:*:*:*:*
cpe:2.3:a:oracle:openjdk:7:update191:*:*:*:*:*:*
cpe:2.3:a:oracle:openjdk:7:update2:*:*:*:*:*:*
cpe:2.3:a:oracle:openjdk:7:update201:*:*:*:*:*:*
cpe:2.3:a:oracle:openjdk:7:update21:*:*:*:*:*:*
cpe:2.3:a:oracle:openjdk:7:update211:*:*:*:*:*:*
cpe:2.3:a:oracle:openjdk:7:update221:*:*:*:*:*:*
cpe:2.3:a:oracle:openjdk:7:update231:*:*:*:*:*:*
cpe:2.3:a:oracle:openjdk:7:update241:*:*:*:*:*:*
cpe:2.3:a:oracle:openjdk:7:update25:*:*:*:*:*:*
cpe:2.3:a:oracle:openjdk:7:update251:*:*:*:*:*:*
cpe:2.3:a:oracle:openjdk:7:update3:*:*:*:*:*:*
cpe:2.3:a:oracle:openjdk:7:update4:*:*:*:*:*:*
cpe:2.3:a:oracle:openjdk:7:update40:*:*:*:*:*:*
cpe:2.3:a:oracle:openjdk:7:update45:*:*:*:*:*:*
cpe:2.3:a:oracle:openjdk:7:update5:*:*:*:*:*:*
cpe:2.3:a:oracle:openjdk:7:update51:*:*:*:*:*:*
cpe:2.3:a:oracle:openjdk:7:update55:*:*:*:*:*:*
cpe:2.3:a:oracle:openjdk:7:update6:*:*:*:*:*:*
cpe:2.3:a:oracle:openjdk:7:update60:*:*:*:*:*:*

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