Reference page — cumulative record through Sunday, October 4, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2020-7961

CVE-2020-7961CRITICAL

n/a n/a — Liferay Liferay Portal

  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS    %ile   KEV
   N   L   N   N  U  H  H  H    9.8   .9990   100.0   YES

AFFECTED
  Product  Versions  Fixed
  n/a      n/a –     —

TIMELINE
  Jan 24  Reserved by mitre
  Mar 20  Published (CNA: mitre)
  Nov 3   Added to CISA KEV, remediation due 2022-05-03

CWE-502 · CNA: mitre · CVSS v3.1 · 6 references · KEV due May 3, 2022

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).

Lifecycle

Complete event history — 3 events, chronological
Date	Event	Detail
January 24, 2020	Reserved	Reserved by mitre
March 20, 2020	Published	Published (CNA: mitre)
November 3, 2021	KEV ADDED	Added to CISA KEV, remediation due 2022-05-03

Affected

Affected products and packages — 1 row
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
n/a	n/a	—	n/a	—

Weaknesses

CWE-502

References (6)

http://packetstormsecurity.com/files/157254/Liferay-Portal-Java-Unmarshalling-Remote-Code-Execution.html [x_refsource_MISC]
http://packetstormsecurity.com/files/158392/Liferay-Portal-Remote-Code-Execution.html [x_refsource_MISC]
https://portal.liferay.dev/learn/security/known-vulnerabilities [x_refsource_MISC]
https://portal.liferay.dev/learn/security/known-vulnerabilities/-/asset_publisher/HbL5mxmVrnXW/content/id/117954271 [x_refsource_CONFIRM]
https://research.checkpoint.com/2021/freakout-leveraging-newest-vulnerabilities-for-creating-a-botnet/ [x_refsource_MISC]
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-7961 [government-resource]

Authoritative record: CVE-2020-7961 at cve.org

Weaknesses: CWE-502

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2020-7961 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Sunday, October 4, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.