CVE-2021-27358

The snapshot feature in Grafana 6.7.3 through 7.4.1 can allow an unauthenticated remote attackers to trigger a Denial of Service via a remote API call if a commonly used configuration is set.

Published: 2021-03-18 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2021-27358 is rated High Risk (69.9/100): CVSS High severity, with high exploitation likelihood (EPSS 92.40%, 100th percentile). EPSS ranks this CVE among the most likely to be exploited in the near term. EPSS rose +5.35% over the last day, indicating growing attacker interest. High exploitation likelihood—assess exposure and prioritize remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2021-27358

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-05-22 87.05% 92.40% +5.35%
2 2026-05-02 87.43% 87.05% -0.38%
3 2026-03-16 — 87.43% —

Full EPSS history (67 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2021-27358

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 3.6 [email protected]
5.0 2.0 MEDIUM
AV:N/AC:L/Au:N/C:N/I:N/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:P)
Partial availability impact.
 10.0 2.9 [email protected]

Weakness enumeration for CVE-2021-27358

GitHub Security Advisory for CVE-2021-27358

OS Trackers for CVE-2021-27358

vendor priority summary link
alpine high CVE-2021-27358: 1 source package rows (grafana); 4 state rows across 2 repos (3.22-community, edge-community); fixed 0, open 4. https://security.alpinelinux.org/vuln/CVE-2021-27358
redhat medium — https://access.redhat.com/security/cve/CVE-2021-27358
suse high CVE-2021-27358 severity important: SUSE including 146 source package names (7.5.12.2.2.13:grafana-7.5.7-3.12.1, 7.5.12:grafana-7.5.7-1.21.1, …), 276 product×package rows across 25 product lines (Container caasp/v4/grafana, Container ses/7.1/ceph/grafana, … (25 product lines)): Fixed 271, Known Not Affected 5. https://www.suse.com/security/cve/CVE-2021-27358/
ubuntu medium CVE-2021-27358 medium priority: Ubuntu including 1 source packages (grafana), 14 status rows across 14 suites (bionic, focal, groovy, hirsute, impish, jammy, mantic, noble, oracular, plucky, questing, trusty, upstream, xenial): DNE 12, needed 1, released 1. https://ubuntu.com/security/CVE-2021-27358

Affected software / configurations for CVE-2021-27358

Vendor Product Version Raw CPE
grafana grafana >= 6.7.3, <= 7.4.1 cpe:2.3:a:grafana:grafana:*:*:*:*:*:*:*:*
netapp e-series_performance_analyzer — cpe:2.3:a:netapp:e-series_performance_analyzer:-:*:*:*:*:*:*:*

References for CVE-2021-27358

cvelogic Threat Intelligence