Security readout for executives and security teams
This issue lets a local, authenticated attacker with high privileges bypass Cisco UCS C-Series BIOS firmware signature checks and install compromised BIOS firmware. The business risk is firmware integrity: malicious BIOS can persist below the operating system. Evidence in the bundle does not show internet exposure or active exploitation. Exposure is limited to Cisco UCS C-Series Rack Servers using the affected BIOS upgrade utility. The source bundle lists Cisco Unified Computing System (Managed) with unspecified versions, so asset owners must confirm exact affected models and versions against Cisco guidance. Treat as a targeted infrastructure integrity risk, not a broad remote-exploitation emergency. Prioritize systems where many workloads depend on UCS hardware, where admin access is widely shared, or where firmware change controls are weak. Mitigation focus: Check Cisco's advisory for affected models, fixed releases, and vendor-approved guidance.; Restrict local and administrative access to UCS server management hosts.; Allow BIOS upgrades only through controlled change-management windows..
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
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Open ATT&CK lookupCVE-2019-1880 mapping review
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Open ATT&CK lookup- Severity
- Medium
- CVSS
- 4.4 (3.0)
- Known Exploited
- No
- Published
Vector: CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N
CNA and ADP enrichment extracted from CVE v5
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CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N0.83.6Primary CVE scoreVulnerability scoring details
Base CVSS 3.0 score
4.4MediumVector: CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N
Source materials
- CVE List V5 sourceCVE List V5
- 20190605 Cisco Unified Computing System BIOS Signature Bypass VulnerabilityCVE reference · vendor-advisory, x_refsource_CISCO
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Insufficient Verification of Data Authenticity
Insufficient Verification of Data Authenticity represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.