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Critical 9.8Known exploited (CISA KEV)Published Mar 20, 2020
CVE-2020-7961Deserialization 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).
Updated under an hour ago ()
Does this affect you?
It affects liferay_portal. Add what you run to find out whether that includes you.
CISA lists it as known exploited since Nov 3, 2021; federal agencies had to remediate by May 3, 2022. Treat that date as your deadline.
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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).
- CVSS
- 9.8 CRITICAL (v3.1, CISA ADP)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- CWE-502
- Known exploited
- Added to CISA KEV Nov 3, 2021; federal remediation due May 3, 2022Apply updates per vendor instructions.
- EPSS (exploitation in the next 30 days)
- 99.91% (percentile 100)
- Assigned by
- mitre
- NVD analysis
- Analyzed
- Record last updated
- Oct 21, 2025
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
liferay liferay_portal liferay:liferay_portal | before 7.2.1 | NVD |
References
- https://portal.liferay.dev/learn/security/known-vulnerabilitiesx-refsource-misc, broken-link, vendor-advisory
- https://portal.liferay.dev/learn/security/known-vulnerabilities/-/asset_publisher/HbL5mxmVrnXW/content/id/117954271x-refsource-confirm, broken-link, vendor-advisory
- http://packetstormsecurity.com/files/157254/Liferay-Portal-Java-Unmarshalling-Remote-Code-Execution.htmlx-refsource-misc, third-party-advisory, vdb-entry
- http://packetstormsecurity.com/files/158392/Liferay-Portal-Remote-Code-Execution.htmlx-refsource-misc, third-party-advisory, vdb-entry
- https://research.checkpoint.com/2021/freakout-leveraging-newest-vulnerabilities-for-creating-a-botnet/x-refsource-misc, exploit, third-party-advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-7961us-government-resource
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.