Deserialization in Liferay Portal

CVE-2019-16891

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

Vulnerability class: Insecure Deserialization

EPSS: 0.457 (98.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2019-16891?
CVE-2019-16891 is a critical-severity vulnerability in Liferay Portal, classified under Deserialization of Untrusted Data. CVSS score: 9.8/10. Published 2019-10-04.
How severe is CVE-2019-16891?
Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2019-16891 known to be exploited?
13 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.