CVE-2020-2800Network attack vector

Unauthenticated data access and modification

Published Apr 15, 2020 · Updated Sep 30, 2024

An unspecified flaw in Oracle Java SE 7u251, 8u241, 11.0.6, and 14 allows remote attackers to read and modify data over a network. Oracle has not disclosed the internal Lightweight HTTP Server operation that mishandles attacker-controlled API data. Exploitation requires a service to pass crafted data to the component APIs and is constrained by high attack complexity.

CVSS severity4.8
Medium
EPSS probability2.88%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

An unspecified flaw in Oracle Java SE 7u251, 8u241, 11.0.6, and 14 allows remote attackers to read and modify data over a network. Oracle has not disclosed the internal Lightweight HTTP Server operation that mishandles attacker-controlled API data. Exploitation requires a service to pass crafted data to the component APIs and is constrained by high attack complexity.

The record

CVE
CVE-2020-2800
Published
Apr 15, 2020
Updated
Sep 30, 2024
Vendor
Oracle Corporation
Product
Java Platform, Standard Edition (Java SE)
Classifications
T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 15, 2020CVE publishedPublication date reported by the CVE source.
  2. Sep 30, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=Java SE: 7u251, 8u241, 11.0.6, 14
  2. Affected versionversion=Java SE Embedded: 8u241

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Oracle Corporation · Java Platform, Standard Edition (Java SE)version=Java SE: 7u251, 8u241, 11.0.6, 14; version=Java SE Embedded: 8u241

Published CVSS scores

4.8Oracle CorporationCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/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

T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo