How severe is CVE-2019-1975?

CVE-2019-1975 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2019-1975 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (65th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-1975?

CVE-2019-1975 primarily affects Cisco Hyperflex Hx220c M5 Firmware. In total, 10 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2019-1975?

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

When was CVE-2019-1975 published?

CVE-2019-1975 was published on 2019-09-18 and last updated on 2026-06-17.

CVE-2019-1975

CVE-2019-1975 is a medium-severity vulnerability in Cisco Hyperflex Hx220c M5 Firmware with a CVSS 3.x base score of 6.1. 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-1021.

Key facts

Severity: Medium (CVSS 3.x base score 6.1)
CVSS v2: 4.3
EPSS exploit prediction: 1% (65th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-1021
Affected product: Cisco Hyperflex Hx220c M5 Firmware
Published: 2019-09-18
Last modified: 2026-06-17

Description

A vulnerability in the web-based interface of Cisco HyperFlex Software could allow an unauthenticated, remote attacker to execute a cross-frame scripting (XFS) attack on an affected device. This vulnerability is due to insufficient HTML iframe protection. An attacker could exploit this vulnerability by directing a user to an attacker-controlled web page that contains a malicious HTML iframe. A successful exploit could allow the attacker to conduct clickjacking or other clientside browser attacks.

Frequently asked questions

What is CVE-2019-1975?: A vulnerability in the web-based interface of Cisco HyperFlex Software could allow an unauthenticated, remote attacker to execute a cross-frame scripting (XFS) attack on an affected device. This vulnerability is due to insufficient HTML iframe protection. An attacker could exploit this vulnerability by directing a user to an attacker-controlled web page that contains a malicious HTML iframe. A successful exploit could allow the attacker to conduct clickjacking or other clientside browser attacks.
How severe is CVE-2019-1975?: CVE-2019-1975 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2019-1975 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (65th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-1975?: CVE-2019-1975 primarily affects Cisco Hyperflex Hx220c M5 Firmware. In total, 10 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2019-1975?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2019-1975 published?: CVE-2019-1975 was published on 2019-09-18 and last updated on 2026-06-17.

References

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190918-hyperflex-xfs

Affected products (10)

cpe:2.3:o:cisco:hyperflex_hx220c_m5_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:cisco:hyperflex_hx220c_m5_firmware:4.0\(1a\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:hyperflex_hx240c_m5_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:cisco:hyperflex_hx240c_m5_firmware:4.0\(1a\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:hyperflex_hx220c_af_m5_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:cisco:hyperflex_hx220c_af_m5_firmware:4.0\(1a\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:hyperflex_hx240c_af_m5_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:cisco:hyperflex_hx240c_af_m5_firmware:4.0\(1a\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:hyperflex_hx220c_edge_m5_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:cisco:hyperflex_hx220c_edge_m5_firmware:4.0\(1a\):*:*:*:*:*:*:*

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