CVE-2020-10204Network attack vector

Authenticated remote code execution via malicious request

Published Apr 1, 2020 · Updated Aug 4, 2024

Remote code execution in Sonatype Nexus Repository before 3.21.2 allows remote authenticated users to execute arbitrary code via a crafted request. The vulnerable request handling performs insufficient validation while a third-party library configuration permits submitted code evaluation outside the Nexus process scope. Network access and a Nexus account are required; execution inherits the server account's privileges, enabling compromise of confidentiality, integrity, and availability.

CVSS severity9.1
Critical
EPSS probability38.17%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Remote code execution in Sonatype Nexus Repository before 3.21.2 allows remote authenticated users to execute arbitrary code via a crafted request. The vulnerable request handling performs insufficient validation while a third-party library configuration permits submitted code evaluation outside the Nexus process scope. Network access and a Nexus account are required; execution inherits the server account's privileges, enabling compromise of confidentiality, integrity, and availability.

The record

CVE
CVE-2020-10204
Published
Apr 1, 2020
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-20
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 1, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

9.0NVDAV:N/AC:L/Au:S/C:C/I:C/A:C
9.1SonatypeCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
7.2NVDCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-20Improper Input Validation

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

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Your stack

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