CVE-2019-16891

CRITICALNVD 9.89.8—

9.8

Liferay Portal CE 6.2.5 allows remote command execution because of deserialization of a JSON payload.

CVSS v3: 9.8
EG Score: 9.8(medium)
EPSS: 99.1%
KEV: Not listed

Published

October 4, 2019

Last Modified

November 21, 2024

References (8)

cve@mitrehttps://dappsec.substack.com/p/an-advisory-for-cve-2019-16891-from
cve@mitrehttps://sec.vnpt.vn/2019/09/liferay-deserialization-json-deserialization-part-4/
cve@mitrehttps://www.liferay.com/downloads-community
cve@mitrehttps://www.youtube.com/watch?v=DjMEfQW3bf0
af854a3a-2127-422b-91ae-364da2661108https://dappsec.substack.com/p/an-advisory-for-cve-2019-16891-from
af854a3a-2127-422b-91ae-364da2661108https://sec.vnpt.vn/2019/09/liferay-deserialization-json-deserialization-part-4/
af854a3a-2127-422b-91ae-364da2661108https://www.liferay.com/downloads-community
af854a3a-2127-422b-91ae-364da2661108https://www.youtube.com/watch?v=DjMEfQW3bf0

Affected Packages

(1 across 1 ecosystem)

Maven(1)

Package	Vulnerable range	Fixed in	Dependents
com.liferay.portal:release.portal.bom	7.0.6, 7.0.6-1, 7.0.6-2, 7.1.0	7.1.1	—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-502Deserialization of Untrusted Data

Data Freshness Timeline

(refreshed 8× in last 7d / 8× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-05-27 13:38 UTCepss_batch
2026-05-27 13:25 UTCEG score recompute
2026-05-26 13:42 UTCepss_batch
2026-05-26 13:42 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-24 04:02 UTCOSV refresh

Frequently asked(5)

What is CVE-2019-16891?

CVE-2019-16891 is a critical vulnerability published on October 4, 2019. Liferay Portal CE 6.2.5 allows remote command execution because of deserialization of a JSON payload.

When was CVE-2019-16891 disclosed?

CVE-2019-16891 was first published in the National Vulnerability Database on October 4, 2019, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2019-16891 actively exploited?

CVE-2019-16891 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 99.1% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2019-16891?

CVE-2019-16891 has a CVSS v3 base score of 9.8 (NVD).

How do I remediate CVE-2019-16891?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2019-16891, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2019-16891

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