How severe is CVE-2020-10199?

CVE-2020-10199 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2020-10199 being actively exploited?

Yes. CVE-2020-10199 is on CISA's Known Exploited Vulnerabilities (KEV) catalog, added on 2021-11-03, which means active exploitation has been confirmed. It should be prioritised for remediation.

What products are affected by CVE-2020-10199?

CVE-2020-10199 affects Sonatype Nexus. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-10199?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Because this CVE is known to be actively exploited, treat remediation as urgent — CISA KEV typically sets a short remediation deadline.

Does CVE-2020-10199 have an EU (EUVD) identifier?

Yes. CVE-2020-10199 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2020-0379. It is also flagged as exploited in the EUVD (since 2021-11-03).

When was CVE-2020-10199 published?

CVE-2020-10199 was published on 2020-04-01 and last updated on 2026-06-17.

CVE-2020-10199

CVE-2020-10199 is a high-severity vulnerability in Sonatype Nexus with a CVSS 3.x base score of 8.8. It is listed in CISA's Known Exploited Vulnerabilities (KEV) catalog, confirming it has been exploited in the wild (added 2021-11-03). The underlying weakness is classified as CWE-917.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 9.0
EPSS exploit prediction: 99% (100th percentile)
Actively exploited: Yes — listed in CISA KEV (added 2021-11-03)
EU (EUVD) id: EUVD-2020-0379
EU exploitation: Flagged exploited in the ENISA EU Vulnerability Database (since 2021-11-03)
Weakness: CWE-917
Affected product: Sonatype Nexus
Published: 2020-04-01
Last modified: 2026-06-17

Description

Sonatype Nexus Repository before 3.21.2 allows JavaEL Injection (issue 1 of 2).

Frequently asked questions

What is CVE-2020-10199?: Sonatype Nexus Repository before 3.21.2 allows JavaEL Injection (issue 1 of 2).
How severe is CVE-2020-10199?: CVE-2020-10199 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2020-10199 being actively exploited?: Yes. CVE-2020-10199 is on CISA's Known Exploited Vulnerabilities (KEV) catalog, added on 2021-11-03, which means active exploitation has been confirmed. It should be prioritised for remediation.
What products are affected by CVE-2020-10199?: CVE-2020-10199 affects Sonatype Nexus. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-10199?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Because this CVE is known to be actively exploited, treat remediation as urgent — CISA KEV typically sets a short remediation deadline.
Does CVE-2020-10199 have an EU (EUVD) identifier?: Yes. CVE-2020-10199 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2020-0379. It is also flagged as exploited in the EUVD (since 2021-11-03).
When was CVE-2020-10199 published?: CVE-2020-10199 was published on 2020-04-01 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:sonatype:nexus:*:*:*:*:*:*:*:*

More vulnerabilities in Sonatype Nexus

CVE-2020-11444 — High (CVSS 8.8): Sonatype Nexus Repository Manager 3.x up to and including 3.21.2 has Incorrect Access Control.
CVE-2014-9389 — High (CVSS 7.5): Directory traversal vulnerability in Sonatype Nexus OSS and Pro before 2.11.1-01 allows remote attackers to read or…
CVE-2014-2034 — High (CVSS 7.5): Unspecified vulnerability in Sonatype Nexus OSS and Pro 2.4.0 through 2.7.1 allows attackers to create arbitrary user…
CVE-2014-0792 — High (CVSS 7.5): Sonatype Nexus 1.x and 2.x before 2.7.1 allows remote attackers to create arbitrary objects and execute arbitrary code…
CVE-2020-10204 — High (CVSS 7.2): Sonatype Nexus Repository before 3.21.2 allows Remote Code Execution.
CVE-2020-24622 — Medium (CVSS 4.9): In Sonatype Nexus Repository 3.26.1, an S3 secret key can be exposed by an admin user.

All CVEs affecting Sonatype Nexus →

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