CVE-2020-11791
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 · uneditedNETGEAR JGS516PE devices before 2.6.0.43 are affected by reflected 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 · high confidenceNETGEAR JGS516PE switches before firmware version 2.6.0.43 contain a reflected cross-site scripting (XSS) vulnerability. An attacker can inject malicious JavaScript code through unsanitized input parameters in the web interface, which is reflected back to the user without proper encoding.
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< 2.6.0.43CVSS 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 checksWork through these to decide whether this CVE applies to you.
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Confirm device model is JGS516PEAccess the switch web interface or use SNMP/console to identify the device model number. Verify the model is NETGEAR JGS516PE specifically.Affected if Device is a NETGEAR JGS516PE switch
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Check installed firmware versionLog into the switch web interface and navigate to the System or Administration section to view the firmware version. Alternatively, use console or SNMP to query the firmware version.Affected if Firmware version is lower than 2.6.0.43
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Verify web management interface is enabledCheck the switch configuration for web-based management status. This is typically found under System > Management > HTTP/HTTPS or similar administration settings.Affected if HTTP or HTTPS web management interface is enabled and accessible
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Identify accessible input parameters in web interfaceReview web interface pages (login, status, configuration forms) and note any input fields that reflect user-supplied values back without visible sanitization.Affected if The web interface accepts user input through URL parameters or form fields that are reflected in the response without proper encoding
A defender is affected if they have a NETGEAR JGS516PE switch running firmware version lower than 2.6.0.43 with the web management interface enabled and accessible.
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 data2.6.0.43
Update NETGEAR JGS516PE firmware to version 2.6.0.43 or later to obtain the vendor patch for the reflected XSS vulnerability.
- Consultation2.0 h
- Implementation1.0 h
- Testing2.0 h
- Review / QA1.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2020-11791 — 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-2020-11791 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
- No spam, self-promotion, credentials, or personal data