CVE-2019-1937

CVE-2019-1937 is a critical-severity vulnerability in Cisco Integrated Management Controller Supervisor with a CVSS 3.x base score of 9.8. Its EPSS exploit-prediction score of 76% places it in the 100th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-287.

Key facts

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 acquire a valid session token with administrator privileges, bypassing user authentication. 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 use the acquired session token to gain full administrator access to the affected device.

Frequently asked questions

What is CVE-2019-1937?
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 acquire a valid session token with administrator privileges, bypassing user authentication. 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 use the acquired session token to gain full administrator access to the affected device.
How severe is CVE-2019-1937?
CVE-2019-1937 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2019-1937 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 76% (100th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-1937?
CVE-2019-1937 primarily affects Cisco Integrated Management Controller Supervisor. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2019-1937?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2019-1937 published?
CVE-2019-1937 was published on 2019-08-21 and last updated on 2026-06-17.

References

Affected products (5)

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