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CVE-2021-27358

79
FAUCET Score

CVE-2021-27358 describes a Denial of Service vulnerability in Grafana versions 6.7.3 through 7.4.1, and related NetApp products, where an unauthenticated remote attacker can trigger a DoS via an API call if a specific common configuration is enabled. This vulnerability carries a CVSS score of 7.5 (High), indicating a network-based attack with low complexity and high impact on availability, requiring no privileges or user interaction. While not actively exploited in the wild (KEV: No), a Nuclei template exists for detecting this vulnerability, and its EPSS score of 0.79735 suggests a high likelihood of exploitation. Despite the high EPSS and FAUCET Risk Score, there is currently no evidence of active exploitation, Metasploit modules, ExploitDB entries, or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
>= 6.7.3, <= 7.4.1CPE matchmatch criteria
cpe:2.3:a:grafana:grafana:*:*:*:*:*:*:*:*
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:a:netapp:e-series_performance_analyzer:-:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
83.04%
Probability of exploitation in next 30 days
EPSS Percentile
99.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
Nuclei: CVE-2021-27358 · Dec 24, 2021
This CVE's current EPSS score of 0.8304 is in the 100th percentile among its peer group of 51,506 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (9)

gopatch availablevia ghsa
Product: github.com/grafana/grafanaFixed in: 7.4.2
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: grafana-0:7.5.9-4.el8
View patch
redhatvendor investigatingvia redhat_api
Product: Red Hat Storage 3Fixed in: grafana
redhatvendor investigatingvia redhat_api
Product: Red Hat OpenShift Container Platform 3.11Fixed in: openshift3/grafana
redhatvendor investigatingvia redhat_api
Product: Red Hat OpenShift Container Platform 4Fixed in: openshift4/ose-grafana
redhatvendor investigatingvia redhat_api
Product: Red Hat Ceph Storage 3Fixed in: grafana
redhatvendor investigatingvia redhat_api
Product: Red Hat Ceph Storage 4Fixed in: rhceph/rhceph-4-dashboard-rhel8
redhatno patchvia redhat_api
Product: Red Hat Advanced Cluster Management for Kubernetes 2Fixed in: grafana
redhatno patchvia redhat_api
Product: OpenShift Service Mesh 2.0Fixed in: servicemesh-grafana

Vendor Advisories (2)

goGHSA-h5rh-w6vm-9ghcmedium

Denial of service in Grafana

Feb 15, 2022
redhatCVE-2021-27358Moderate

grafana: snapshot feature allow an unauthenticated remote attacker to trigger a DoS via a remote API call

Feb 17, 2021

References

github.com / grafana/grafana/blob/master/CHANGELOG.md
Release NotesThird Party Advisory
github.com / grafana/grafana/blob/master/CHANGELOG.md
Release NotesThird Party Advisory
grafana.com / docs/grafana/latest/release-notes/release-notes-7-4-2
Release NotesVendor Advisory
security.netapp.com / advisory/ntap-20210513-0007
Third Party Advisory