Enterprise Nfv Infrastructure SoftwareApplication · Cisco
CVE-2019-1894
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 Cisco Enterprise NFV Infrastructure Software (NFVIS) could allow an authenticated, remote attacker with administrator privileges to overwrite or read arbitrary files on the underlying operating system (OS) of an affected device. The vulnerability is due to improper input validation in NFVIS filesystem commands. An attacker could exploit this vulnerability by using crafted variables during the execution of an affected command. A successful exploit could allow the attacker to overwrite or read arbitrary files on the underlying OS.
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 · moderate confidenceThis is a command injection vulnerability in Cisco Enterprise NFV Infrastructure Software (NFVIS) where improper input validation in filesystem commands allows an authenticated administrator to read or write arbitrary files on the underlying operating system by using crafted variables.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
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
= 3.9.1CVSS 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
- High
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
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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Confirm NFVIS is installedIdentify if Cisco Enterprise NFV Infrastructure Software is installed on the system by checking for NFVIS processes, services, or the NFVIS installation directory. Use commands like 'ps aux | grep -i nfvis' or check installed packages.Affected if NFVIS is present on the system
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Check installed NFVIS versionDetermine the exact version of Cisco NFVIS installed. Compare the installed version to 3.9.1. Use NFVIS CLI commands such as 'show version' or check version files in the NFVIS installation directory.Affected if The installed version is exactly 3.9.1
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Verify administrator access existsCheck for administrator accounts or privileged access to NFVIS. Review user accounts configured in NFVIS with administrative privileges using 'show admin' or similar commands.Affected if Authenticated administrator accounts exist with access to NFVIS
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Inspect for filesystem command anomaliesReview NFVIS logs and audit records for unusual or crafted filesystem command invocations. Look for patterns indicating arbitrary file read or write operations via the filesystem command interface.Affected if Unusual filesystem commands are observed in logs or audit trails
A user is affected if NFVIS version 3.9.1 is running and an authenticated administrator account exists, as the vulnerability requires admin-level access to exploit the improper input validation in filesystem commands.
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 Cisco's official patch for NFVIS when available, or upgrade to a fixed version. Restrict administrator access to trusted personnel and monitor for unusual filesystem command usage.
Fix this in Enterprise Nfv Infrastructure Software
Scoped from the published advisory
- Consultation4.0 h
- Implementation6.0 h
- Testing8.0 h
- Review / QA4.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $6,080.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2019-1894 — 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-2019-1894 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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- 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
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