CVE-2019-16891

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.8 under NVD CVSS v3. EPSS exploit probability: 79.6%, top 1% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
Elevated
9.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 46%CVSS: 9.8Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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
98.7%
KEV
Not listed

Published

October 4, 2019

Last Modified

November 21, 2024

Advisory Details (4)

Auto-updated Jun 8, 2026
Patch available.
generic
https://www.youtube.com/watch?v=DjMEfQW3bf0
generic

Download Liferay DXP Free Tier - Liferay DXP

https://www.liferay.com/downloads-community
generic

Liferay deserialization (JSON Deserialization) [part 4] (CVE-2019-16891)

https://sec.vnpt.vn/2019/09/liferay-deserialization-json-deserialization-part-4/
generic Patch Available

An advisory for CVE-2019-16891: From PostAuth RCE to PreAuth RCE on Liferay Portal

https://dappsec.substack.com/p/an-advisory-for-cve-2019-16891-from

Affected Packages

(1 across 1 ecosystem)
Maven(1)
PackageVulnerable rangeFixed inDependents
com.liferay.portal:release.portal.bom7.0.6, 7.0.6-1, 7.0.6-2, 7.1.07.1.1—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 5× in last 7d / 28× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-07-11 08:24 UTCEPSS rescore
  2. 2026-07-11 08:24 UTCEPSS rescore
  3. 2026-07-09 19:06 UTCEPSS rescore
  4. 2026-07-08 15:11 UTCEPSS rescore
  5. 2026-07-05 02:27 UTCEPSS rescore
  6. 2026-07-02 20:05 UTCOSV refresh
  7. 2026-07-01 15:03 UTCEPSS rescore
  8. 2026-07-01 15:03 UTCEPSS rescore
  9. 2026-06-30 23:20 UTCEPSS rescore
  10. 2026-06-28 04:54 UTCEPSS rescore
  11. 2026-06-28 04:54 UTCEPSS rescore
  12. 2026-06-27 03:06 UTCEPSS rescore
  13. 2026-06-25 13:47 UTCEPSS rescore
  14. 2026-06-25 13:47 UTCEPSS rescore
  15. 2026-06-24 14:03 UTCEPSS rescore
  16. 2026-06-24 14:03 UTCEPSS rescore
  17. 2026-06-23 21:31 UTCEPSS rescore
  18. 2026-06-23 21:30 UTCEPSS rescore
  19. 2026-06-22 14:23 UTCEPSS rescore
  20. 2026-06-21 01:57 UTCEPSS rescore
  21. 2026-06-21 01:57 UTCEPSS rescore
  22. 2026-06-18 17:50 UTCEPSS rescore
  23. 2026-06-17 17:50 UTCEPSS rescore
  24. 2026-06-16 17:50 UTCEPSS rescore
  25. 2026-06-15 17:45 UTCEPSS rescore
Show 27 more
  1. 2026-06-14 17:13 UTCOSV refresh
  2. 2026-06-13 22:58 UTCEPSS rescore
  3. 2026-06-12 23:09 UTCEPSS rescore
  4. 2026-06-11 13:58 UTCEPSS rescore
  5. 2026-06-10 13:19 UTCEPSS rescore
  6. 2026-06-08 14:15 UTCEPSS rescore
  7. 2026-06-07 15:23 UTCEPSS rescore
  8. 2026-06-07 15:23 UTCEPSS rescore
  9. 2026-06-05 22:45 UTCEPSS rescore
  10. 2026-06-05 22:45 UTCEPSS rescore
  11. 2026-06-05 06:08 UTCEPSS rescore
  12. 2026-06-05 06:08 UTCEPSS rescore
  13. 2026-06-04 13:10 UTCEPSS rescore
  14. 2026-06-04 13:10 UTCEPSS rescore
  15. 2026-06-01 13:50 UTCEPSS rescore
  16. 2026-06-01 13:50 UTCEPSS rescore
  17. 2026-05-31 00:14 UTCEPSS rescore
  18. 2026-05-31 00:14 UTCEPSS rescore
  19. 2026-05-29 13:42 UTCEPSS rescore
  20. 2026-05-27 13:38 UTCEPSS rescore
  21. 2026-05-27 13:25 UTCEG score recompute
  22. 2026-05-26 13:42 UTCEPSS rescore
  23. 2026-05-26 13:42 UTCEPSS rescore
  24. 2026-05-26 07:17 UTCEPSS rescore
  25. 2026-05-26 07:17 UTCEPSS rescore
  26. 2026-05-26 07:17 UTCEPSS rescore
  27. 2026-05-24 04:02 UTCOSV refresh

Related CVEs(same CWE)

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 98.7% 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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