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Sd Wan 110 FirmwareOperating system · Citrix

CVE-2022-27505

MEDIUM · 6.1 CVSS v3.1 Published 2022-04-13
Fix available
A fix is available. Upgrade to 11.4.3a or later.
See remediation →
68/100
Remediation priority · Elevated
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
Reflected cross site scripting (XSS)

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 confidence

Reflected cross-site scripting (XSS) vulnerability allows attackers to inject malicious scripts into web pages viewed by other users. The attack payload is part of the request sent to the web application and is reflected back in the response without proper sanitization.

MitigationImplement context-aware output encoding and input validation to neutralize malicious script content before reflecting it in HTTP responses.

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 110 FirmwareOperating system
Affected:< 11.4.3a
Sd Wan 210 FirmwareOperating system
Affected:< 11.4.3a
Sd Wan 400 FirmwareOperating system
Affected:< 11.4.3a
Sd Wan 410 FirmwareOperating system
Affected:< 11.4.3a
Sd Wan 1000 FirmwareOperating system
Affected:< 11.4.3a
Sd Wan 2000 FirmwareOperating system
Affected:< 11.4.3a
Sd Wan 2100 FirmwareOperating system
Affected:< 11.4.3a
Sd Wan 4000 FirmwareOperating system
Affected:< 11.4.3a

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
Changed
Confidentiality
Low
Integrity
Low
Availability
None

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

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 checks

Work through these to decide whether this CVE applies to you.

  1. Identify SD-WAN firmware version
    Access the SD-WAN web management interface and navigate to the System or Administration section to view the installed firmware version. Alternatively, use the CLI command 'show version' or 'system show version' if available.
    Affected if The installed firmware version is lower than 11.4.3a and matches one of the affected models (110, 210, 400, 410, 1000, 2000, 2100, or 4000)
  2. Confirm device model
    Determine the exact SD-WAN model number from the physical device label, web interface dashboard, or CLI output using 'show system info' or similar command.
    Affected if The device is a Citrix SD-WAN model 110, 210, 400, 410, 1000, 2000, 2100, or 4000 with firmware below 11.4.3a
  3. Verify web interface is enabled
    Check if the SD-WAN web management interface is enabled and accessible on the network. Attempt to reach the management IP over HTTPS or verify via CLI that the web server is running using commands like 'show interface' or 'show web-server status' if available.
    Affected if The web management interface is enabled and the firmware version is below 11.4.3a

The environment is affected if running any Citrix SD-WAN model 110, 210, 400, 410, 1000, 2000, 2100, or 4000 with firmware version lower than 11.4.3a and the web interface is accessible.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

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 11.4.3a or later
Fixed in 11.4.3a
Interim mitigation

Implement context-aware output encoding and input validation to neutralize malicious script content before reflecting it in HTTP responses.

Recommended fix Moderate confidence

Citrix SD-WAN firmware 11.4.3a or later

  1. Navigate to the Citrix SD-WAN management interface
  2. Locate the firmware upgrade section in System > Software or similar menu
  3. Download the firmware version 11.4.3a or later from the official Citrix support portal (support.citrix.com)
  4. Verify the firmware file integrity using checksums provided by Citrix
  5. Upload the firmware file to the SD-WAN appliance
  6. Initiate the firmware upgrade and allow the device to reboot
  7. After reboot, verify the system is running firmware version 11.4.3a or later
  8. Confirm the XSS vulnerability is remediated by testing the previously vulnerable endpoint
Caveat Review Citrix release notes for 11.4.3a for any configuration or feature changes before upgrading

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

Fix this in Sd Wan 110 Firmware Scoped from the published advisory
  • Consultation2.0 h
  • Implementation4.0 h
  • Testing3.0 h
  • Review / QA2.0 h
11.0 hours of engineering $1,930
Get the upgrade done

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $3,088.

Scan for this in your stack

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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-2022-27505 in production — separate from our analysis above.

No notes yet

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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