How severe is CVE-2018-16621?

CVE-2018-16621 has a CVSS 3.x base score of 7.2, rated high severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2018-16621 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (75th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-16621?

CVE-2018-16621 affects Sonatype Nexus Repository Manager. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-16621?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2018-16621 published?

CVE-2018-16621 was published on 2018-11-15 and last updated on 2026-06-17.

CVE-2018-16621

CVE-2018-16621 is a high-severity vulnerability in Sonatype Nexus Repository Manager with a CVSS 3.x base score of 7.2. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-917.

Key facts

Severity: High (CVSS 3.x base score 7.2)
CVSS v2: 6.5
EPSS exploit prediction: 2% (75th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-917
Affected product: Sonatype Nexus Repository Manager
Published: 2018-11-15
Last modified: 2026-06-17

Description

Sonatype Nexus Repository Manager before 3.14 allows Java Expression Language Injection.

Frequently asked questions

What is CVE-2018-16621?: Sonatype Nexus Repository Manager before 3.14 allows Java Expression Language Injection.
How severe is CVE-2018-16621?: CVE-2018-16621 has a CVSS 3.x base score of 7.2, rated high severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2018-16621 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (75th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-16621?: CVE-2018-16621 affects Sonatype Nexus Repository Manager. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-16621?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2018-16621 published?: CVE-2018-16621 was published on 2018-11-15 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:sonatype:nexus_repository_manager:*:*:*:*:*:*:*:*

More vulnerabilities in Sonatype Nexus Repository Manager

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CVE-2019-5475 — High (CVSS 8.8): The Nexus Yum Repository Plugin in v2 is vulnerable to Remote Code Execution when instances using…
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CVE-2020-15868 — High (CVSS 7.5): Sonatype Nexus Repository Manager OSS/Pro before 3.26.0 has Incorrect Access Control.

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