Sd Wan FirmwareOperating system · Cisco
CVE-2019-12629
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 the WebUI of the Cisco SD-WAN Solution could allow an authenticated, remote attacker to inject and execute arbitrary commands with vmanage user privileges on an affected system. The vulnerability is due to insufficient input validation of data parameters for certain fields in the affected solution. An attacker could exploit this vulnerability by configuring a malicious username on the login page of the affected solution. A successful exploit could allow the attacker to inject and execute arbitrary commands with vmanage user privileges on an affected system.
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 · high confidenceA command injection vulnerability in the Cisco SD-WAN Solution WebUI allows authenticated remote attackers to execute arbitrary commands with vmanage user privileges. The flaw exists due to insufficient input validation on the username field during login, allowing malicious payload injection that gets executed with the privileges of the vmanage user account.
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
Sd Wan FirmwareOperating system
< 18.3.0CVSS 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:3.1/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 Cisco SD-WAN vManage is deployedIdentify whether the target system is a Cisco SD-WAN vManage instance by reviewing system documentation, network diagrams, or logging into the device CLI and checking the product identification.Affected if The system is a Cisco SD-WAN vManage deployment
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Check SD-WAN firmware versionLog into the vManage WebUI or CLI and navigate to the version or system information page to retrieve the installed firmware version. Compare this version against the 18.3.0 threshold.Affected if The installed firmware version is below 18.3.0
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Verify WebUI is network-accessibleReview firewall rules, ACLs, or interface configurations to determine if the vManage WebUI interface (typically ports 443 or 8443) is accessible from networks outside the trusted administrative zone.Affected if The WebUI is exposed to untrusted or external networks
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Confirm authentication is enabledCheck the vManage authentication settings to verify whether local user authentication is enabled for WebUI access.Affected if Local authentication is enabled on the vManage WebUI
The environment is affected if it runs Cisco SD-WAN vManage with firmware version below 18.3.0, has the WebUI exposed, and uses local authentication.
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 data18.3.0
Apply Cisco's official patch for CVE-2019-12629 when available. In the interim, restrict access to the SD-WAN WebUI to trusted networks only and monitor for suspicious login attempts with unusual username patterns.
Fix this in Sd Wan Firmware
Scoped from the published advisory
- Consultation4.0 h
- Implementation6.0 h
- Testing4.0 h
- Review / QA3.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $4,832.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2019-12629 — 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-2019-12629 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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