CVE-2020-26063
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 · uneditedA vulnerability in the API endpoints of Cisco Integrated Management Controller could allow an authenticated, remote attacker to bypass authorization and take actions on a vulnerable system without authorization. The vulnerability is due to improper authorization checks on API endpoints. An attacker could exploit this vulnerability by sending malicious requests to an API endpoint. An exploit could allow the attacker to download files from or modify limited configuration options on the affected system.There are no workarounds that address this vulnerability.
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 · high confidenceAuthorization bypass vulnerability in Cisco Integrated Management Controller (IMC) API endpoints. An authenticated remote attacker can bypass proper authorization checks on API endpoints to download sensitive files or modify limited configuration options on the affected system.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
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
- Network
- Complexity
- Low
- Privileges
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
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 checksWork through these to decide whether this CVE applies to you.
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Identify Cisco IMC installationCheck if Cisco Integrated Management Controller is running by querying the system for IMC services or checking for IMC-related processes (such as 'imcservice' or port 443/80 if IMC is the web interface)Affected if The system does not have Cisco IMC installed or running, then it is not affected by this vulnerability
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Determine Cisco IMC versionAccess the IMC web interface or use the CLI command 'show version' via IPMI or remote access to retrieve the IMC firmware versionAffected if The installed version falls within the vulnerable version range for CVE-2020-26063 (compare your version to Cisco's official advisory for the specific affected versions)
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Verify API endpoint accessibilityCheck if the IMC API endpoints are exposed by attempting to access https://<imc-ip>/api/ or reviewing the web server configuration for API endpoint enablementAffected if API endpoints are enabled and accessible on the IMC interface, creating the attack surface for this vulnerability
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Review API access logsExamine IMC audit or access logs for any API calls that may indicate authorization bypass attempts, such as successful API requests to sensitive endpoints without proper role-based accessAffected if Unusual or unauthorized API access patterns are present in the logs that suggest the bypass was exploited
A system is affected if it runs a vulnerable version of Cisco IMC with API endpoints enabled and accessible, where an authenticated attacker could exploit the authorization bypass to access sensitive files or modify configurations.
Generated from the published advisory. Verify against your own configuration.
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 dataApply the vendor-supplied patch from Cisco to remediate this vulnerability; no workarounds are available.
- Consultation2.0 h
- Implementation4.0 h
- Testing2.0 h
- Review / QA1.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2020-26063 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2020-26063 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Version or environment caveats, and links to real fixes
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