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CVE-2019-1974

31
FAUCET Score

CVE-2019-1974 is a critical authentication bypass vulnerability in the web-based management interfaces of Cisco Integrated Management Controller (IMC) Supervisor, Cisco UCS Director, and Cisco UCS Director Express for Big Data. Due to insufficient request header validation, an unauthenticated, remote attacker can gain full administrative access to affected devices. This vulnerability has a CVSS score of 9.8 (Critical), indicating a network-attackable, low-complexity exploit with high impact on confidentiality, integrity, and availability. While no public exploit code is currently available in common frameworks like Metasploit or Nuclei, the vulnerability has garnered significant community discussion and media coverage, suggesting a high level of awareness and potential for future exploitation.

Impacted Technologies

VendorProductVersion(s)CPE
>= 2.2.0.0, <= 2.2.0.6CPE matchmatch criteria
cpe:2.3:a:cisco:integrated_management_controller_supervisor:*:*:*:*:*:*:*:*
2.1.0.0CPE matchmatch criteria
cpe:2.3:a:cisco:integrated_management_controller_supervisor:2.1.0.0:*:*:*:*:*:*:*
>= 5.5.0.0, <= 5.5.0.2CPE matchmatch criteria
cpe:2.3:a:cisco:ucs_director:*:*:*:*:*:*:*:*
>= 6.0.0.0, <= 6.0.1.3CPE matchmatch criteria
cpe:2.3:a:cisco:ucs_director:*:*:*:*:*:*:*:*
>= 6.5.0.0, <= 6.5.0.3CPE matchmatch criteria
cpe:2.3:a:cisco:ucs_director:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

9.8CRITICAL

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
4.49%
Probability of exploitation in next 30 days
EPSS Percentile
90.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0449 is in the 84th percentile among its peer group of 36,833 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (1)

ciscovendor investigatingvia nvd_reference
View patch

References

tools.cisco.com / security/center/content/CiscoSecurityAdvisory/cisco-sa-20190821-imcs-ucs-authbypass
Vendor Advisory