CVE-2020-10204

Sonatype Nexus Repository before 3.21.2 allows Remote Code Execution.

Published: 2020-04-01 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2020-10204 is rated Moderate Risk (62.5/100): CVSS High severity, with high exploitation likelihood (EPSS 55.84%, 98th percentile). Core evidence: EPSS ranks this CVE among the most likely to be exploited in the near term. Mandatory action: High exploitation likelihood—assess exposure and prioritize remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2020-10204

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-05-04 56.52% 55.84% -0.68%
2 2026-04-07 54.12% 56.52% +2.40%
3 2026-01-30 54.12%

Full EPSS history (22 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2020-10204

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.2 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:H)
They need powerful rights—admin, root, or similar—before this pays off.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
1.2 5.9 [email protected]
9.0 2.0 HIGH
AV:N/AC:L/Au:S/C:C/I:C/A:C Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:S)
A single authentication is required.
Confidentiality impact (C:C)
Complete confidentiality impact.
Integrity impact (I:C)
Complete integrity impact.
Availability impact (A:C)
Complete availability impact.
8.0 10.0 [email protected]

Weakness enumeration for CVE-2020-10204

GitHub Security Advisory for CVE-2020-10204

GHSA-8h56-v53h-5hhj · Severity: high · Ecosystem: maven — Remote Code Execution - JavaEL Injection (low privileged accounts) in Nexus Repository Manager

Affected software / configurations for CVE-2020-10204

Vendor Product Version Raw CPE
sonatype nexus < 3.21.2 cpe:2.3:a:sonatype:nexus:*:*:*:*:*:*:*:*

References for CVE-2020-10204

cvelogic Threat Intelligence