CVE-2019-1975: Cisco HyperFlex Software Cross-Frame Scripting Vulnerability

Severity: medium (CVSS 6.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2019-09-18 · updated 2026-06-17
Weakness: CWE-693

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.

Affected products

Cisco Hyperflex Hx220C Af M5 Firmware: through 3.5.2f; 4.0(1a)
Cisco Hyperflex Hx220C Edge M5 Firmware: through 3.5.2f; 4.0(1a)
Cisco Hyperflex Hx220C M5 Firmware: through 3.5.2f; 4.0(1a)
Cisco Hyperflex Hx240C Af M5 Firmware: through 3.5.2f; 4.0(1a)
Cisco Hyperflex Hx240C M5 Firmware: through 3.5.2f; 4.0(1a)

References

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