CISA KEV catalog
Confirmed active exploitation.
Listed in CISA's catalog of Known Exploited Vulnerabilities: attackers are using it in real attacks. Patch it with priority.
- Name
- Liferay Portal Deserialization of Untrusted Data Vulnerability
- Added to catalog
- Remediation due date (US federal)
- Required action
- Apply updates per vendor instructions.
Description
Deserialization of Untrusted Data in Liferay Portal prior to 7.2.1 CE GA2 allows remote attackers to execute arbitrary code via JSON web services (JSONWS).
Affected products
liferay: liferay portal
References10
- portal.liferay.dev/learn/security/known-vulnerabilities Broken LinkVendor Advisory
- portal.liferay.dev/learn/security/known-vulnerabilities/-/asset… Broken LinkVendor Advisory
- portal.liferay.dev/learn/security/known-vulnerabilities Broken LinkVendor Advisory
- portal.liferay.dev/learn/security/known-vulnerabilities/-/asset… Broken LinkVendor Advisory
- research.checkpoint.com/2021/freakout-leveraging-newest-vulnera… ExploitThird Party Advisory
- research.checkpoint.com/2021/freakout-leveraging-newest-vulnera… ExploitThird Party Advisory
- packetstormsecurity.com/files/157254/Liferay-Portal-Java-Unmars… Third Party AdvisoryVDB Entry
- packetstormsecurity.com/files/158392/Liferay-Portal-Remote-Code… Third Party AdvisoryVDB Entry
- packetstormsecurity.com/files/157254/Liferay-Portal-Java-Unmars… Third Party AdvisoryVDB Entry
- packetstormsecurity.com/files/158392/Liferay-Portal-Remote-Code… Third Party AdvisoryVDB Entry
Metrics
- CVSS 3.1
-
9.8
CRITICAL
Score source: NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - EPSS — exploit probability
- 100% percentile: 100 · as of 11 November 2026
- CWE
- CWE-502
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