CVE-2019-16891

Name: CVE-2019-16891
Creator: NVD / NIST
Published: 2019-10-04T14:15:11.03+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 45.65%

Last modified Jun 17, 2026

CVE-2019-16891 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. Liferay Portal CE 6.2.5 allows remote command execution because of deserialization of a JSON payload.. EPSS estimates a 45.65% chance of exploitation in the next 30 days.

Description

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

Metrics

CVSS 3.1

9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

45.65%

98.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-502

Affected Software

Vendor	Product	Versions	Update
Liferay	Liferay Portal	<= 6.0.6	—
Liferay	Liferay Portal	6.1.0	B1
Liferay	Liferay Portal	6.1.1	Ga2
Liferay	Liferay Portal	6.1.2	Ga3
Liferay	Liferay Portal	6.2.0	B1
Liferay	Liferay Portal	6.2.1	Ga2
Liferay	Liferay Portal	6.2.2	Ga3
Liferay	Liferay Portal	6.2.3	Ga4
Liferay	Liferay Portal	6.2.4	Ga5
Liferay	Liferay Portal	6.2.5	Ga6
Liferay	Liferay Portal	7.0.0	A1
Liferay	Liferay Portal	7.0.1	Ga2
Liferay	Liferay Portal	7.0.2	Ga3
Liferay	Liferay Portal	7.0.3	Ga4
Liferay	Liferay Portal	7.0.4	Ga5
Liferay	Liferay Portal	7.0.5	Ga6
Liferay	Liferay Portal	7.0.6	Ga7
Liferay	Liferay Portal	7.1.0	A1
Liferay	Liferay Portal	7.1.1	Ga2
Liferay	Liferay Portal	7.1.2	Ga3
Liferay	Liferay Portal	7.1.3	Ga4
Liferay	Liferay Portal	7.2.0	Alpha1

References

https://dappsec.substack.com/p/an-advisory-for-cve-2019-16891-fromExploit, Third Party Advisory
https://sec.vnpt.vn/2019/09/liferay-deserialization-json-deserialization-part-4/Exploit, Third Party Advisory
https://www.liferay.com/downloads-communityProduct, Release Notes
https://www.youtube.com/watch?v=DjMEfQW3bf0Exploit
https://dappsec.substack.com/p/an-advisory-for-cve-2019-16891-fromExploit, Third Party Advisory
https://sec.vnpt.vn/2019/09/liferay-deserialization-json-deserialization-part-4/Exploit, Third Party Advisory
https://www.liferay.com/downloads-communityProduct, Release Notes
https://www.youtube.com/watch?v=DjMEfQW3bf0Exploit

Timeline

Published: Oct 4, 2019
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2019-16891?

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

How severe is CVE-2019-16891?

CVE-2019-16891 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 45.65% probability of exploitation in the next 30 days.

How do I fix CVE-2019-16891?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2019-16891?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST