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Catalyst CenterApplication · Cisco

CVE-2023-20182

HIGH · 8.8 CVSS v3.1 Developing Published 2023-05-18
Fix available
A fix is available. Upgrade to 2.3.3.7 / 2.3.5.3 or later.
See remediation →
94/100
Remediation priority · Urgent
Remotely reachable 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
Multiple vulnerabilities in the API of Cisco DNA Center Software could allow an authenticated, remote attacker to read information from a restricted container, enumerate user information, or execute arbitrary commands in a restricted container as the root user. For more information about these vulnerabilities, see the Details section of this advisory.

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 · low confidence
Developing — this CVE was published recently and its authoritative NVD entry is still being established, so we're holding a technical summary until the source data settles rather than publish something unreliable. Re-checking after 2026-07-31.

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
Catalyst CenterApplication
Affected:< 2.3.3.7>= 2.3.4, < 2.3.5.3

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
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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.

dbcve · scoped
Upgrade available Upgrade to 2.3.3.7 / 2.3.5.3 or later
Fixed in 2.3.3.72.3.5.3
Recommended fix High confidence

Upgrade to Catalyst Center version 2.3.3.7 (for versions < 2.3.3.7) or version 2.3.5.3 or later (for versions >= 2.3.4)

  1. 1. Identify the current version of Cisco Catalyst Center (DNA Center) by accessing the GUI or using the CLI command 'show version'
  2. 2. If current version is < 2.3.3.7, plan upgrade to version 2.3.3.7 or later within the 2.3.3.x branch
  3. 3. If current version is >= 2.3.4 and < 2.3.5.3, plan upgrade to version 2.3.5.3 or later
  4. 4. Before upgrading, create a full backup of the Catalyst Center configuration and ensure adequate maintenance window is scheduled
  5. 5. Follow Cisco's standard upgrade procedure for Catalyst Center (typically via ISO image or via the GUI's Software Updates section)
  6. 6. After upgrade, verify the new version is running and confirm vulnerability is remediated
Caveat Cisco Catalyst Center upgrades may require downtime and should be performed during maintenance windows; ensure compatibility with existing integrations and review Cisco upgrade documentation

Generated from the published advisory — verify against the referenced sources before acting.

We can perform the upgrade in your staging environment and verify nothing breaks — typical engagement from $1,950. Get the upgrade done

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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-2023-20182 in production — separate from our analysis above.

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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