CVE-2025-20348Network attack vector

Data access and file modification via missing authorization

Published Aug 27, 2025 · Updated Aug 27, 2025

Improper authorization in Cisco Nexus Dashboard REST APIs allows remote authenticated users to read settings and modify image files. Affected endpoints omit authorization checks before returning HTTP proxy or NTP details and accepting image uploads or changes. Low-privileged credentials suffice, but only a subset of REST endpoints is exposed and the web management interface is unaffected.

CVSS severity5.0
Medium
EPSS probability0.30%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper authorization in Cisco Nexus Dashboard REST APIs allows remote authenticated users to read settings and modify image files. Affected endpoints omit authorization checks before returning HTTP proxy or NTP details and accepting image uploads or changes. Low-privileged credentials suffice, but only a subset of REST endpoints is exposed and the web management interface is unaffected.

The record

CVE
CVE-2025-20348
Published
Aug 27, 2025
Updated
Aug 27, 2025
Vendor
ClamAV
Product
Cisco Nexus Dashboard
Classifications
CWE-201, T1068
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 27, 2025CVE publishedPublication date reported by the CVE source.
  2. Aug 27, 2025Record 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=1.1(0c)
  2. Affected versionversion=1.1(0d)
  3. Affected versionversion=1.1(2h)
  4. Affected versionversion=1.1(2i)
  5. Affected versionversion=1.1(3c)
  6. Affected versionversion=1.1(3d)
  7. Affected versionversion=1.1(3e)
  8. Affected versionversion=1.1(3f)
  9. Affected versionversion=2.0(1b)
  10. Affected versionversion=2.0(1d)
  11. Affected versionversion=2.0(2g)
  12. Affected versionversion=2.0(2h)
  13. Affected versionversion=2.1(1d)
  14. Affected versionversion=2.1(1e)
  15. Affected versionversion=2.1(2d)
  16. Affected versionversion=2.1(2f)
  17. Affected versionversion=2.2(1e)
  18. Affected versionversion=2.2(1h)
  19. Affected versionversion=2.2(2d)
  20. Affected versionversion=2.3(1c)
  21. Affected versionversion=2.3(2b)
  22. Affected versionversion=2.3(2c)
  23. Affected versionversion=2.3(2d)
  24. Affected versionversion=2.3(2e)
  25. Affected versionversion=3.0(1f)
  26. Affected versionversion=3.0(1i)
  27. Affected versionversion=3.1(1k)
  28. Affected versionversion=3.1(1l)
  29. Affected versionversion=3.1(1n)
  30. Affected versionversion=3.2(1e)
  31. Affected versionversion=3.2(1i)
  32. Affected versionversion=3.2(2f)
  33. Affected versionversion=3.2(2g)
  34. Affected versionversion=3.2(2m)
  35. Affected versionversion=3.3(1a)
  36. Affected versionversion=3.3(1b)
  37. Affected versionversion=3.3(2b)
  38. Affected versionversion=3.3(2g)
  39. Affected versionversion=4.0(1i)

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

ClamAV · Cisco Nexus Dashboardversion=1.1(0c); version=1.1(0d); version=1.1(2h); version=1.1(2i); version=1.1(3c); version=1.1(3d); version=1.1(3e); version=1.1(3f); version=2.0(1b); version=2.0(1d); version=2.0(2g); version=2.0(2h); version=2.1(1d); version=2.1(1e); version=2.1(2d); version=2.1(2f); version=2.2(1e); version=2.2(1h); version=2.2(2d); version=2.3(1c); version=2.3(2b); version=2.3(2c); version=2.3(2d); version=2.3(2e); version=3.0(1f); version=3.0(1i); version=3.1(1k); version=3.1(1l); version=3.1(1n); version=3.2(1e); version=3.2(1i); version=3.2(2f); version=3.2(2g); version=3.2(2m); version=3.3(1a); version=3.3(1b); version=3.3(2b); version=3.3(2g); version=4.0(1i)

Published CVSS scores

5.0Cisco Systems, Inc.CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N

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-201Insertion of Sensitive Information Into Sent Data
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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