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Enterprise Nfv Infrastructure SoftwareApplication · Cisco

CVE-2022-20779

HIGH · 8.8 CVSS v3.1 Published 2022-05-04
Fix available
A fix is available. Upgrade to 4.7.1 or later.
See remediation →
95/100
Remediation priority · Urgent
Public exploit Remotely reachable No privileges

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 Cisco Enterprise NFV Infrastructure Software (NFVIS) could allow an attacker to escape from the guest virtual machine (VM) to the host machine, inject commands that execute at the root level, or leak system data from the host to the VM. 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
How this class of weakness works · CWE-284

The application fails to correctly restrict what a user can do or reach, so functions or resources are available to people who should not have them. Attackers simply probe for the paths where the check is missing or wrong. The fix is to enforce access-control decisions consistently on every request, evaluated against the acting user rather than assumed from context.

General guidance for the improper access control class — the official description and references above are authoritative for this specific CVE. Want a bespoke review and a reviewed fix? Ask our team →

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
Enterprise Nfv Infrastructure SoftwareApplication
Affected:< 4.7.1

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
None
User interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/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 4.7.1 or later
Fixed in 4.7.1
Recommended fix High confidence

Cisco Enterprise NFV Infrastructure Software 4.7.1 or later

  1. 1. Back up all current NFVIS configurations and data before initiating the upgrade process.
  2. 2. Access the NFVIS admin interface or CLI.
  3. 3. Navigate to the system upgrade or software management section.
  4. 4. Download and install Cisco Enterprise NFV Infrastructure Software version 4.7.1 or later.
  5. 5. Verify the upgrade completed successfully by checking the software version.
  6. 6. Restore configurations from the backup if necessary.
  7. 7. Validate that all guest VMs can communicate properly with the host and that the vulnerabilities are remediated.
Caveat Review Cisco release notes for 4.7.1 for any configuration changes or migration requirements from previous versions

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-2022-20779 in production — separate from our analysis above.

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What this is

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What belongs here
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  • Version or environment caveats, and links to real fixes
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