CVE-2020-7961VulnerabilityPublished 11/03/2021Updated 10/24/2026

CVE-2020-7961: Liferay Portal Deserialization of Untrusted Data Vulnerability

Affects Liferay Liferay PortalSource CISA KEV

Severity

High

No CVSS score published yet

Exploitation: Actively exploited – in CISA KEV since 11/03/2021
KEV deadline: 05/03/2022
EPSS: 99.9% chance of exploitation in 30 days – higher than 99% of CVEs

What to do

CISA required action

Apply updates per vendor instructions.

nvd.nist.gov/vuln/detail/CVE-2020-7961 (opens in a new tab)

Description

CVE-2020-7961 is a deserialization of untrusted data vulnerability in Liferay Portal that allows remote attackers to execute arbitrary code via JSON web services. This vulnerability has been exploited in the wild. No specific affected versions or patch information is provided in the available data.

Summary

Liferay Portal contains a vulnerability identified as CVE-2020-7961, where deserialization of untrusted data in JSON web services can lead to remote code execution by attackers. This vulnerability is categorized under CWE-502 (Deserialization of Untrusted Data). It has been reported by CISA KEV and is known to be exploited in the wild. However, no detailed vendor advisory or patch information is provided in the input data.

Impact

Successful exploitation of this vulnerability allows remote attackers to execute arbitrary code on the affected Liferay Portal system, potentially leading to full system compromise. The vulnerability has been exploited in the wild, indicating active threat and real-world impact.

Mitigation

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict access to JSON web services and monitor for suspicious activity related to deserialization attempts.

Weaknesses

CWE-502Deserialization of Untrusted Data (opens in a new tab)

What to do

Description

AnalysisAI-generated, updated 10/24/2026, 09:20:22 UTC

Weaknesses

References

Related threats