CVE-2020-2816Network attack vector

Unauthenticated critical data modification

Published Apr 15, 2020 · Updated Sep 27, 2024

Integrity violation in Oracle Java SE 11.0.6 and 14 JSSE allows remote attackers to modify critical data through HTTPS. Oracle has not disclosed the faulty JSSE routine or how crafted input is processed incorrectly. Exploitation requires an application, such as a web service, to pass attacker-supplied data to JSSE APIs; it does not require applets or Java Web Start.

CVSS severity7.5
High
EPSS probability2.77%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Integrity violation in Oracle Java SE 11.0.6 and 14 JSSE allows remote attackers to modify critical data through HTTPS. Oracle has not disclosed the faulty JSSE routine or how crafted input is processed incorrectly. Exploitation requires an application, such as a web service, to pass attacker-supplied data to JSSE APIs; it does not require applets or Java Web Start.

The record

CVE
CVE-2020-2816
Published
Apr 15, 2020
Updated
Sep 27, 2024
Vendor
Oracle Corporation
Product
Java Platform, Standard Edition (Java SE)
Classifications
T1565
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 15, 2020CVE publishedPublication date reported by the CVE source.
  2. Sep 27, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=Java SE: 11.0.6, 14

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Oracle Corporation · Java Platform, Standard Edition (Java SE)version=Java SE: 11.0.6, 14

Published CVSS scores

7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
5.0NIST NVDAV:N/AC:L/Au:N/C:N/I:P/A:N
7.5OracleCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1565Data Manipulation

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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