CVE-2020-26063Network attack vector

Authenticated file access via improper API authorization

Published Nov 18, 2024 · Updated Nov 18, 2024

Authorization bypass in Cisco Integrated Management Controller 4.0(4h)C and earlier allows remote authenticated users to download files. Affected API endpoints perform improper authorization checks on crafted requests, permitting actions beyond the caller's assigned permissions. Valid CIMC credentials and network access to the management interface are required; impact is limited to file downloads and changes to some configuration options.

CVSS severity5.4
Medium
EPSS probability0.62%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authorization bypass in Cisco Integrated Management Controller 4.0(4h)C and earlier allows remote authenticated users to download files. Affected API endpoints perform improper authorization checks on crafted requests, permitting actions beyond the caller's assigned permissions. Valid CIMC credentials and network access to the management interface are required; impact is limited to file downloads and changes to some configuration options.

The record

CVE
CVE-2020-26063
Published
Nov 18, 2024
Updated
Nov 18, 2024
Vendor
ClamAV
Product
Cisco Unified Computing System (Managed)
Classifications
CWE-269, T1068
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Nov 18, 2024CVE publishedPublication date reported by the CVE source.
  2. Nov 18, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=3.2(1d)
  2. Affected versionversion=3.2(2b)
  3. Affected versionversion=3.2(2c)
  4. Affected versionversion=3.2(2d)
  5. Affected versionversion=3.2(2e)
  6. Affected versionversion=3.2(2f)
  7. Affected versionversion=3.2(3a)
  8. Affected versionversion=3.2(3b)
  9. Affected versionversion=3.2(3d)
  10. Affected versionversion=3.2(3e)
  11. Affected versionversion=3.2(3g)
  12. Affected versionversion=3.2(3h)
  13. Affected versionversion=3.2(3i)
  14. Affected versionversion=3.2(3j)
  15. Affected versionversion=3.2(3k)
  16. Affected versionversion=3.2(3l)
  17. Affected versionversion=3.2(3n)
  18. Affected versionversion=3.2(3o)
  19. Affected versionversion=3.2(3p)
  20. Affected versionversion=4.0(1a)
  21. Affected versionversion=4.0(1b)
  22. Affected versionversion=4.0(1c)
  23. Affected versionversion=4.0(1d)
  24. Affected versionversion=4.0(2a)
  25. Affected versionversion=4.0(2b)
  26. Affected versionversion=4.0(2d)
  27. Affected versionversion=4.0(2e)
  28. Affected versionversion=4.0(4a)
  29. Affected versionversion=4.0(4b)
  30. Affected versionversion=4.0(4c)
  31. Affected versionversion=4.0(4d)
  32. Affected versionversion=4.0(4e)
  33. Affected versionversion=4.0(4f)
  34. Affected versionversion=4.0(4g)
  35. Affected versionversion=4.0(4h)
  36. Affected versionversion=4.0(4i)
  37. Affected versionversion=4.1(1a)
  38. Affected versionversion=4.1(1b)
  39. Affected versionversion=4.1(1c)
  40. Affected versionversion=4.1(1d)
  41. Affected versionversion=4.1(1e)
  42. Affected versionversion=4.1(2a)
  43. Affected versionversion=4.1(2b)

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

ClamAV · Cisco Unified Computing System (Managed)version=3.2(1d); version=3.2(2b); version=3.2(2c); version=3.2(2d); version=3.2(2e); version=3.2(2f); version=3.2(3a); version=3.2(3b); version=3.2(3d); version=3.2(3e); version=3.2(3g); version=3.2(3h); version=3.2(3i); version=3.2(3j); version=3.2(3k); version=3.2(3l); version=3.2(3n); version=3.2(3o); version=3.2(3p); version=4.0(1a); version=4.0(1b); version=4.0(1c); version=4.0(1d); version=4.0(2a); version=4.0(2b); version=4.0(2d); version=4.0(2e); version=4.0(4a); version=4.0(4b); version=4.0(4c); version=4.0(4d); version=4.0(4e); version=4.0(4f); version=4.0(4g); version=4.0(4h); version=4.0(4i); version=4.1(1a); version=4.1(1b); version=4.1(1c); version=4.1(1d); version=4.1(1e); version=4.1(2a); version=4.1(2b)
ClamAV · Cisco Unified Computing Systemversion=3.2\(1d\); version=3.2\(2b\); version=3.2\(2c\); version=3.2\(2d\); version=3.2\(2e\); version=3.2\(2f\); version=3.2\(3a\); version=3.2\(3b\); version=3.2\(3d\); version=3.2\(3e\); version=3.2\(3g\); version=3.2\(3h\); version=3.2\(3i\); version=3.2\(3j\); version=3.2\(3k\); version=3.2\(3l\); version=3.2\(3n\); version=3.2\(3o\); version=3.2\(3p\); version=4.0\(1a\); version=4.0\(1b\); version=4.0\(1c\); version=4.0\(1d\); version=4.0\(2a\); version=4.0\(2b\); version=4.0\(2d\); version=4.0\(2e\); version=4.0\(4a\); version=4.0\(4b\); version=4.0\(4c\); version=4.0\(4d\); version=4.0\(4e\); version=4.0\(4f\); version=4.0\(4g\); version=4.0\(4h\); version=4.0\(4i\); version=4.1\(1a\); version=4.1\(1b\); version=4.1\(1c\); version=4.1\(1d\); version=4.1\(1e\); version=4.1\(2a\); version=4.1\(2b\)

Published CVSS scores

5.4Cisco Systems, Inc.CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N/E:X/RL:X/RC:X

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-269Improper Privilege Management
T1068Exploitation for Privilege Escalation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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