CVE-2017-18862
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 · uneditedCertain NETGEAR devices are affected by authentication bypass. This affects JGS516PE before 2017-05-11, JGS524Ev2 before 2017-05-11, JGS524PE before 2017-05-11, GS105Ev2 before 2017-05-11, GS105PE before 2017-05-11, GS108Ev3 before 2017-05-11, GS108PEv3 before 2017-05-11, GS116Ev2 before 2017-05-11, GSS108E before 2017-05-11, GSS116E before 2017-05-11, XS708Ev2 before 2017-05-11, and XS716E before 2017-05-11.
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 confidenceAuthentication bypass vulnerability in multiple NETGEAR switch models (JGS516PE, JGS524Ev2, GS105Ev2, GS108Ev3, GS116Ev2, XS708Ev2, and others) allows attackers to bypass authentication to gain unauthorized access to the device management interface. The vulnerability is network-exploitable with CVSS 6.5 indicating moderate exploitability.
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< 2017-05-11< 2017-05-11< 2017-05-11< 2017-05-11< 2017-05-11< 2017-05-11< 2017-05-11< 2017-05-11CVSS 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
- Adjacent
- Complexity
- Low
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- None
- Availability
- None
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/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.
-
Identify the NETGEAR switch modelLocate the device model number on the physical device label, or access the device web interface or CLI and navigate to System or Device Information to identify the exact model (e.g., JGS516PE, GS108Ev3, GS116E)Affected if The device is one of the following models: JGS516PE, JGS524Ev2, JGS524PE, GS105E, GS105PE, GS108E, GS108PE, GS116E, or related variants (XS708Ev2 and others)
-
Check the installed firmware versionAccess the device web interface and navigate to Administration > Firmware Upgrade or System > Device Information to view the current firmware version and date. Alternatively, use the CLI command 'show version' or similar to display firmware informationAffected if The firmware version cannot be determined or the device does not report a firmware date
-
Compare firmware date to the affected thresholdExamine the firmware version string or reported date. Look for dates prior to 2017-05-11. Some devices may display only a version number (e.g., 1.0.0.4) rather than a date - in such cases, consult the NETGEAR release notes or support documentation to determine the firmware release dateAffected if The firmware date is before May 11, 2017 or the version corresponds to a pre-May 2017 release based on vendor documentation
-
Assess network exposure of management interfaceReview the device network configuration to determine if the administrative web interface (typically ports 80/443) or CLI (port 23/22) is accessible from untrusted networks. Check VLAN configuration, management VLAN settings, and any ACLs applied to the management interfaceAffected if The device management interface is reachable from untrusted network segments or the internet
A device is affected if it is a vulnerable NETGEAR switch model running firmware dated before 2017-05-11 and its management interface is network-accessible to untrusted users.
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 data2017-05-11
Apply firmware updates released on 2017-05-11 or later for all affected device models. If immediate patching is not feasible, restrict administrative interface access to trusted networks or IPs using ACLs or VLAN segmentation.
- Consultation3.0 h
- Implementation6.0 h
- Testing3.0 h
- Review / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $3,984.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2017-18862 — 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-2017-18862 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
Be the first to add a field note for this CVE — a mitigation you’ve verified, a version caveat, or a link to a working fix. Sign in above to contribute.
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.
- 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