Is CVE-2021-28146 in the CISA KEV catalog?

No. CVE-2021-28146 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-28146?

CVE-2021-28146 has a CVSS v3 base score of 6.5 (MEDIUM).

What is the EPSS score for CVE-2021-28146?

CVE-2021-28146 has an EPSS score of 1.40% (69th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-28146?

Upgrade GrafanaEnterprise to 7.4.5 or later. Fixes are available for 2 affected products.

CVE & CISA-KEV Catalog

CVE-2021-28146

MEDIUM

6.5

CVSS v3

NVD

Description

The team sync HTTP API in Grafana Enterprise 7.4.x before 7.4.5 has an Incorrect Access Control issue. On Grafana instances using an external authentication service, this vulnerability allows any authenticated user to add external groups to existing teams. This can be used to grant a user team permissions that the user isn't supposed to have.

CWE-863Incorrect Authorization

How to fix

Remediation Available

GrafanaEnterpriseWindows application

Affected:7.4.0 7.4.5Fixed in:7.4.5Grafana Labs

GrafanaOSSWindows application

Affected:7.4.0 7.4.5Fixed in:7.4.5Grafana Labs

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 ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityHigh

AvailabilityNone

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

Exploit Intelligence

1.40%probability of exploitation in 30 days

69thpercentile

Moderate risk: more likely to be exploited than 69% of all known CVEs.

References

Vendor Advisory6

Third-Party Advisory1

openwall.com

Related Vulnerabilities

Other CWE-863 (Incorrect Authorization) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2023-22518	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2023-38035	Critical	9.8	100%	KEV + Ransom	-
CVE-2022-46169	Critical	9.8	100%	KEV	Fix
CVE-2025-29927	Critical	9.1	100%	-	Fix
CVE-2024-38856	Critical	9.8	99%	KEV	Fix
CVE-2020-36289	Medium	5.3	99%	-	Fix

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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.