CVE-2020-4427

Name: CVE-2020-4427
Creator: NVD / NIST
Published: 2020-05-07T20:15:12.627+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10Actively ExploitedEPSS 70.03%

Last modified Jun 17, 2026

CVE-2020-4427 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. IBM Data Risk Manager 2.0.1, 2.0.2, 2.0.3, 2.0.4, 2.0.5, and 2.0.6 could allow a remote attacker to bypass security restrictions when configured with SAML authentication. By sending a specially crafted HTTP request, an attacker could exploit this vulnerability to bypass the authentication process and gain full administrative access to the system. CISA has confirmed active exploitation in the wild. EPSS estimates a 70.03% chance of exploitation in the next 30 days.

Description

IBM Data Risk Manager 2.0.1, 2.0.2, 2.0.3, 2.0.4, 2.0.5, and 2.0.6 could allow a remote attacker to bypass security restrictions when configured with SAML authentication. By sending a specially crafted HTTP request, an attacker could exploit this vulnerability to bypass the authentication process and gain full administrative access to the system. IBM X-Force ID: 180532.

Metrics

CVSS 3.1

9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

70.03%

99.3th percentile

Probability of exploitation in the next 30 days. Learn more

Exploitation Status

This vulnerability is listed in CISA’s Known Exploited Vulnerabilities catalog, confirming active exploitation in the wild. Federal agencies must remediate by May 3, 2022.

Weakness Enumeration

CWE-287

Affected Software

Vendor	Product	Versions
Ibm	Data Risk Manager	>= 2.0.1, <= 2.0.6.1

References

https://exchange.xforce.ibmcloud.com/vulnerabilities/180532VDB Entry, Vendor Advisory
https://www.ibm.com/support/pages/node/6206875Patch, Vendor Advisory
http://seclists.org/fulldisclosure/2024/Nov/0Mailing List, Third Party Advisory
http://seclists.org/fulldisclosure/2024/Nov/1Mailing List, Third Party Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/180532VDB Entry, Vendor Advisory
https://www.ibm.com/support/pages/node/6206875Patch, Vendor Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-4427US Government Resource

Timeline

Published: May 7, 2020
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2020-4427?

How severe is CVE-2020-4427?

CVE-2020-4427 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 70.03% probability of exploitation in the next 30 days. This vulnerability is listed in CISA's Known Exploited Vulnerabilities catalog.

How do I fix CVE-2020-4427?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-4427?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST