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Actively exploited in the wild. This CVE is on the CISA Known Exploited Vulnerabilities list — treat remediation as urgent. Federal remediation due by 3 May 2022.
Jgs516pe FirmwareOperating system · Netgear

CVE-2020-26919

CRITICAL · 9.8 CVSS v3.1 Published 2020-10-09
Fix available
A fix is available. Upgrade to 2.6.0.43 or later.
See remediation →
100/100
Remediation priority · Urgent
In the wild High EPSS Remotely reachable No privileges Zero-click

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
NETGEAR JGS516PE devices before 2.6.0.43 are affected by lack of access control at the function level.

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

NETGEAR JGS516PE switch devices before version 2.6.0.43 contain a broken access control vulnerability where certain functions lack proper authorization checks, potentially allowing unauthenticated attackers to access sensitive functionality or make configuration changes.

MitigationUpgrade NETGEAR JGS516PE firmware to version 2.6.0.43 or later. If immediate patching is not possible, restrict network access to the device management interface via ACLs or VLAN segmentation.

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
Jgs516pe FirmwareOperating system
Affected:< 2.6.0.43

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
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/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 checks

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

  1. Identify the device model
    Access the device's web management interface or console and look for the model number displayed on the login page or in the system information section. Confirm it is a NETGEAR JGS516PE switch.
    Affected if The device model is NETGEAR JGS516PE
  2. Check the installed firmware version
    In the web management interface, navigate to the System or Administration section to find the firmware version. Alternatively, access the console and use commands like 'show version' or check the firmware information in the maintenance or diagnostics section.
    Affected if The firmware version displayed is earlier than 2.6.0.43 (for example, 2.6.0.42, 2.6.0.40, or any version number below 2.6.0.43)
  3. Verify the web management interface is enabled
    In the web management interface, go to the Administration or System Management settings and check if HTTP or HTTPS web access is enabled. Note the IP address and port configured for management access.
    Affected if The web management interface (HTTP on port 80 or HTTPS on port 443) is enabled and accessible on the network
  4. Confirm management interface is network-reachable
    From an external workstation on the same network, attempt to reach the device's management IP address using a web browser on ports 80 or 443, or use tools like curl or telnet to check if the web service responds.
    Affected if The web management interface responds to HTTP/HTTPS requests from a network location, indicating it is exposed on the network

You are affected if the device is a NETGEAR JGS516PE running firmware version 2.6.0.42 or earlier, and the web management interface is enabled and accessible on your network.

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 2.6.0.43 or later
Fixed in 2.6.0.43
Interim mitigation

Upgrade NETGEAR JGS516PE firmware to version 2.6.0.43 or later. If immediate patching is not possible, restrict network access to the device management interface via ACLs or VLAN segmentation.

Recommended fix High confidence

JGS516PE Firmware version 2.6.0.43 or later

  1. 1. Obtain the latest firmware version 2.6.0.43 or later from the official NETGEAR support website (kb.netgear.com) for the JGS516PE model
  2. 2. Access the JGS516PE switch web management interface via its IP address
  3. 3. Navigate to the Administration or Maintenance section in the web interface
  4. 4. Locate the Firmware Update or Upgrade option
  5. 5. Upload the downloaded firmware file and initiate the upgrade
  6. 6. Wait for the upgrade to complete and the device to reboot
  7. 7. Verify the firmware version has been updated to 2.6.0.43 or later

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

Fix this in Jgs516pe Firmware Exploited in the wild — priority engagement
  • Consultation3.0 h
  • Implementation2.0 h
  • Testing2.0 h
  • Review / QA1.0 h
8.0 hours of engineering $1,440
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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-2020-26919 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