Is CVE-2019-1974 actively exploited?

No active exploitation of CVE-2019-1974 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2019-1974 be exploited remotely?

Yes. CVE-2019-1974 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2019-1974?

CVE-2019-1974 has a CVSS score of 9.8 (CRITICAL).

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CRITICAL

CVE-2019-1974

CWE-287Published: August 21, 2019· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

A vulnerability in the web-based management interface of Cisco Integrated Management Controller (IMC) Supervisor, Cisco UCS Director, and Cisco UCS Director Express for Big Data could allow an unauthenticated, remote attacker to bypass user authentication and gain access as an administrative user. The vulnerability is due to insufficient request header validation during the authentication process. An attacker could exploit this vulnerability by sending a series of malicious requests to an affected device. An exploit could allow the attacker to gain full administrative access to the affected device.

NVD Source

Technical Analysis

CVE-2019-1974 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.

From a weakness classification perspective (CWE-287): Authentication bypass vulnerabilities allow attackers to access protected resources without valid credentials.