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Vulnerabilities

Vulnerability · CVE-2020-7961

Liferay Portal Deserialization of Untrusted Data Vulnerability

Published Mar 20, 2020 · catalog updated Jun 16, 2026 · Liferay Liferay Portal

Patch now

CVE-2020-7961 is in the CISA known-exploited catalog, due May 3, 2022. Confirm Liferay Liferay Portal against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Gaps on this record

  • No version range is stored. A customer cannot check an installed version against this record.
Severity
Critical9.8
Known exploitation
CISA KEV and VulnCheck KEV
EPSS
99.91%
Remediation
Remediation guidance
Affected products
cpe liferay/liferay portal · vendor Liferay Liferay Portal

Liferay Portal contains a deserialization of untrusted data vulnerability that allows remote attackers to execute code via JSON web services. VulnCheck canary evidence. Initial-access exploit intelligence.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe liferay/liferay portalversion unspecified
  • vendor Liferay Liferay Portalversion unspecified

How to fix CVE-2020-7961

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

CVE-2020-7961 is in the CISA known-exploited catalog, due May 3, 2022. Confirm Liferay Liferay Portal against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Which versions are affected?

Affected version ranges are not on this record. Apply updates per vendor instructions.

What should an analyst verify?

CWE-502: Deserialization of Untrusted Data. EPSS 99.91%. The CISA KEV listing is the exploitation evidence. A public exploit reference is linked in Sources. That is not the same as confirmed exploitation. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Mar 20, 2020 · Catalog

    Detected

    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).

  2. Nov 3, 2021 · CISA KEV

    Known exploited

    Apply updates per vendor instructions.

  3. May 3, 2022 · CISA KEV

    Remediation due

    Apply updates per vendor instructions.

  4. Jun 16, 2026 · Catalog

    Updated

    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).

Sources

  • CISA KEVConfirmed exploitationCVE-2020-7961

    Liferay Portal contains a deserialization of untrusted data vulnerability that allows remote attackers to execute code via JSON web services.

    cisa.gov
  • CVE.orgVulnerability recordCVE-2020-7961

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2020-7961

    30-day exploitation probability 99.9%

    first.org
  • Exploit DatabasePublic exploit reference48332

    Public archive entry. The exploit body is not stored here.

    exploit-db.com
  • Metasploit ModulesPublic exploit moduleexploit_multi/http/liferay_java_unmarshalling

    Public module reference (excellent). Module source is not copied into this catalog.

    rapid7.com
  • NIST NVDVulnerability recordCVE-2020-7961

    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).

    nvd.nist.gov
  • Packet Storm SecurityCited referencehttp://packetstormsecurity.com/files/157254/Liferay-Portal-Java-Unmarshalling-Remote-Code-Execution.html

    Packet Storm link already published on the finding.

    packetstormsecurity.com
  • Packet Storm SecurityCited referencehttp://packetstormsecurity.com/files/158392/Liferay-Portal-Remote-Code-Execution.html

    Packet Storm link already published on the finding.

    packetstormsecurity.com
  • VulnCheck KEVConfirmed exploitationCVE-2020-7961

    Liferay Portal contains a deserialization of untrusted data vulnerability that allows remote attackers to execute code via JSON web services.

    vulncheck.com

References

Freshness

Last verified in this catalog Oct 17, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.