Is CVE-2020-27826 in the CISA KEV catalog?

No. CVE-2020-27826 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2020-27826?

CVE-2020-27826 has a CVSS v3 base score of 4.2 (MEDIUM).

What is the EPSS score for CVE-2020-27826?

CVE-2020-27826 has an EPSS score of 0.57% (43th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2020-27826?

Upgrade keycloak to 12.0.0 or later.

CVE & CISA-KEV Catalog

CVE-2020-27826

MEDIUM

4.2

CVSS v3

NVD

Description

A flaw was found in Keycloak before version 12.0.0 where it is possible to update the user's metadata attributes using Account REST API. This flaw allows an attacker to change its own NameID attribute to impersonate the admin user for any particular application.

CWE-250

How to fix

Remediation Available

keycloakNVD

Affected:< 12.0.0Fixed in:12.0.0CVE-2020-27826derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityHigh

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityLow

IntegrityLow

AvailabilityNone

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

Exploit Intelligence

0.57%probability of exploitation in 30 days

43rdpercentile

Moderate risk: more likely to be exploited than 43% of all known CVEs.

References

Vendor Advisory1

bugzilla.redhat.com

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.