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Integrated Management ControllerApplication · Cisco

CVE-2019-1630

MEDIUM · 5.5 CVSS v3.0 Published 2019-06-20
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
57/100
Remediation priority · Elevated
Zero-click

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
A vulnerability in the firmware signature checking program of Cisco Integrated Management Controller (IMC) could allow an authenticated, local attacker to cause a buffer overflow, resulting in a denial of service (DoS) condition. The vulnerability is due to insufficient checking of an input buffer. An attacker could exploit this vulnerability by passing a crafted file to the affected system. A successful exploit could inhibit an administrator's ability to access the system.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · moderate confidence

Buffer overflow vulnerability in Cisco IMC firmware signature checking program. An authenticated local attacker can pass a crafted file to trigger the overflow, causing denial of service and preventing administrator access to the IMC interface.

MitigationApply Cisco's firmware update for this vulnerability. Restrict physical and administrative access to the IMC interface to trusted, authorized personnel only.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
Integrated Management ControllerApplication
Affected:all versions
Unified Computing SystemApplication
Affected:= 4.0\(1c\)hs3

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

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

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Identify if Cisco IMC is present in your environment
    Check if your servers use Cisco Integrated Management Controller by attempting to access the IMC web interface (typically https://<server-ip>/) or by checking server hardware documentation. Cisco IMC is embedded in Cisco UCS C-Series servers and some other Cisco hardware.
    Affected if You have Cisco Integrated Management Controller deployed in your environment.
  2. Determine Cisco IMC version
    Log into the IMC CLI and run the command 'ucsmc version' or access the IMC web interface and navigate to the About/Version page to view the installed firmware version.
    Affected if The IMC version is any version (all versions are affected per the CVE).
  3. Identify Cisco Unified Computing System version
    If your environment uses Cisco UCS, check the UCS Manager version by running 'show version' in UCSM CLI or checking via UCS Manager web interface.
    Affected if The Cisco UCS version is exactly 4.0(1c)hs3.
  4. Assess authenticated access to IMC interface
    Review user accounts and access controls configured in IMC. Use IMC web interface under Admin -> User Management or use CLI 'ucsmc account' to list authorized users. Determine if unauthorized or untrusted accounts exist.
    Affected if Multiple authenticated users or untrusted accounts have access to the IMC interface.

You are affected if you have Cisco IMC deployed (any version) or run Cisco UCS version 4.0(1c)hs3, and untrusted or multiple authenticated users can access the IMC interface.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

From vendor data
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Apply Cisco's firmware update for this vulnerability. Restrict physical and administrative access to the IMC interface to trusted, authorized personnel only.

Fix this in Integrated Management Controller Scoped from the published advisory
  • Consultation3.0 h
  • Implementation2.0 h
  • Testing2.0 h
  • Review / QA1.0 h
8.0 hours of engineering $1,440
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Scan for this in your stack

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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2019-1630 in production — separate from our analysis above.

No notes yet

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data