How severe is CVE-2019-1666?

CVE-2019-1666 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2019-1666 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (80th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-1666?

CVE-2019-1666 primarily affects Cisco Hyperflex Hx Data Platform. In total, 12 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2019-1666?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2019-1666 published?

CVE-2019-1666 was published on 2019-02-21 and last updated on 2026-06-17.

CVE-2019-1666

CVE-2019-1666 is a medium-severity vulnerability in Cisco Hyperflex Hx Data Platform with a CVSS 3.x base score of 5.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-287.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
CVSS v2: 5.0
EPSS exploit prediction: 2% (80th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-287
Affected product: Cisco Hyperflex Hx Data Platform
Published: 2019-02-21
Last modified: 2026-06-17

Description

A vulnerability in the Graphite service of Cisco HyperFlex software could allow an unauthenticated, remote attacker to retrieve data from the Graphite service. The vulnerability is due to insufficient authentication controls. An attacker could exploit this vulnerability by sending crafted requests to the Graphite service. A successful exploit could allow the attacker to retrieve any statistics from the Graphite service. Versions prior to 3.5(2a) are affected.

Frequently asked questions

What is CVE-2019-1666?: A vulnerability in the Graphite service of Cisco HyperFlex software could allow an unauthenticated, remote attacker to retrieve data from the Graphite service. The vulnerability is due to insufficient authentication controls. An attacker could exploit this vulnerability by sending crafted requests to the Graphite service. A successful exploit could allow the attacker to retrieve any statistics from the Graphite service. Versions prior to 3.5(2a) are affected.
How severe is CVE-2019-1666?: CVE-2019-1666 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2019-1666 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (80th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-1666?: CVE-2019-1666 primarily affects Cisco Hyperflex Hx Data Platform. In total, 12 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2019-1666?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2019-1666 published?: CVE-2019-1666 was published on 2019-02-21 and last updated on 2026-06-17.

References

Affected products (12)

cpe:2.3:o:cisco:hyperflex_hx_data_platform:2.6\(1a\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:hyperflex_hx_data_platform:2.6\(1b\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:hyperflex_hx_data_platform:2.6\(1d\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:hyperflex_hx_data_platform:2.6\(1e\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:hyperflex_hx_data_platform:3.0\(1a\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:hyperflex_hx_data_platform:3.0\(1b\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:hyperflex_hx_data_platform:3.0\(1c\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:hyperflex_hx_data_platform:3.0\(1d\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:hyperflex_hx_data_platform:3.0\(1e\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:hyperflex_hx_data_platform:3.0\(1h\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:hyperflex_hx_data_platform:3.0\(1i\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:hyperflex_hx_data_platform:3.5\(1a\):*:*:*:*:*:*:*

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