CVE-2017-18698
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 a stack-based buffer overflow by an authenticated user. This affects R6100 before 1.0.1.20, R7800 before 1.0.2.40, and R9000 before 1.0.2.52.
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 confidenceStack-based buffer overflow vulnerability in NETGEAR R6100, R7800, and R9000 routers. The flaw allows authenticated users to overflow a stack buffer, potentially leading to code execution or device compromise. The vulnerability exists in the firmware prior to patched versions (R6100 <1.0.1.20, R7800 <1.0.2.40, R9000 <1.0.2.52).
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< 1.0.1.20< 1.0.2.40< 1.0.2.52CVSS 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
- High
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:A/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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Identify router modelLocate the model number on the router device label or access the router web administration interface (typically at 192.168.1.1) and check the status or about page to confirm the model is R6100, R7800, or R9000Affected if Model is R6100, R7800, or R9000
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Locate firmware version displayAccess the router web administration interface and navigate to the Firmware Update, Router Status, or About section where the current firmware version is displayedAffected if Unable to locate firmware version information in the router admin interface
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Compare R6100 firmware versionIf the router is an R6100, compare the installed firmware version against 1.0.1.20. Versions below 1.0.1.20 are affectedAffected if R6100 firmware version is lower than 1.0.1.20
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Compare R7800 firmware versionIf the router is an R7800, compare the installed firmware version against 1.0.2.40. Versions below 1.0.2.40 are affectedAffected if R7800 firmware version is lower than 1.0.2.40
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Compare R9000 firmware versionIf the router is an R9000, compare the installed firmware version against 1.0.2.52. Versions below 1.0.2.52 are affectedAffected if R9000 firmware version is lower than 1.0.2.52
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Verify authentication requirementConfirm that the vulnerability requires an authenticated administrator session to exploit, meaning the device must have administrator credentials configuredAffected if Router has administrative access enabled and an attacker could obtain valid credentials
The environment is affected if the router model is R6100, R7800, or R9000 and the installed firmware version falls below the corresponding patched version for that model (1.0.1.20, 1.0.2.40, or 1.0.2.52 respectively).
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 data1.0.1.201.0.2.401.0.2.52
Update affected NETGEAR router firmware to the patched versions (R6100: 1.0.1.20, R7800: 1.0.2.40, R9000: 1.0.2.52). As a secondary measure, limit administrative access to trusted networks and use strong authentication credentials.
- Consultation3.0 h
- Implementation4.0 h
- Testing4.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2017-18698 — 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-2017-18698 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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