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CVE-2017-18756· NVD / CVE Program· CNA mitre

Certain NETGEAR devices are affected by incorrect configuration of security settings.

Certain NETGEAR devices are affected by incorrect configuration of security settings. This affects D6220 before 1.0.0.32, D6400 before 1.0.0.66, D8500 before 1.0.3.35, DGN2200Bv4 before 1.0.0.94, DGN2200v4 before 1.0.0.94, R6250 before 1.0.4.14, R6300v2 before 1.0.4.18, R6400 before 1.01.32, R6400v2 before 1.0.2.44, R6700 before 1.0.1.36, R6900 before 1.0.1.30, R6900P before 1.3.0.8, R7000 before 1.0.9.14, R7000P before 1.3.0.8, R7100LG before 1.0.0.34, R7900 before 1.0.2.4, R8000 before 1.0.4.2, WN2500RPv2 before 1.0.1.50, WNDR3400v3 before 1.0.1.14, and WNDR4000 before 1.0.2.10.

HighCVSS 8.8 · v3.1—No exploit No fix recorded
Published
Apr 22, 2020
Updated
Jun 16, 2026
EPSS
0.5% · 44th percentile
CWE
—
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JSON

Action score

35

Monitor

Low priority for now.

CVSS
35 / 40 · 8.8 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.5%

CNA vs NVD score

NVD
8.8
CNA · mitre
8.8
agree

CVSS:3.0/AC:L/AV:A/A:H/C:H/I:H/PR:N/S:U/UI:N

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Affected systems

VendorProduct
netgeard6220 firmware
netgeard6220
netgeard6400 firmware
netgeard6400
netgeard8500 firmware
netgeard8500
netgeardgn2200b firmware
netgeardgn2200b
netgeardgn2200 firmware
netgeardgn2200
netgearr6250 firmware
netgearr6250

and 26 more

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • netgear d6220 firmwarebefore 1.0.0.32
  • netgear d6400 firmwarebefore 1.0.0.66
  • netgear d8500 firmwarebefore 1.0.3.35
  • netgear dgn2200 firmwarebefore 1.0.0.94
  • netgear dgn2200b firmwarebefore 1.0.0.94
  • netgear r6250 firmwarebefore 1.0.4.14
  • netgear r6300 firmwarebefore 1.0.4.18
  • netgear r6400 firmwarebefore 1.01.32
  • netgear r6400 firmwarebefore 1.0.2.44
  • netgear r6700 firmwarebefore 1.0.1.36
  • netgear r6900 firmwarebefore 1.0.1.30
  • netgear r6900p firmwarebefore 1.3.0.8
  • netgear r7000 firmwarebefore 1.0.9.14
  • netgear r7000p firmwarebefore 1.3.0.8
  • netgear r7100lg firmwarebefore 1.0.0.34
  • netgear r7900 firmwarebefore 1.0.2.4
  • netgear r8000 firmwarebefore 1.0.4.2
  • netgear wn2500rp firmwarebefore 1.0.1.50
  • netgear wndr3400 firmwarebefore 1.0.1.14
  • netgear wndr4000 firmwarebefore 1.0.2.10

Same product

netgear: all records

Other highest-scoring records for the same primary product.

  • CVE-2016-6277NETGEAR R6250 before 1.0.4.6.Beta, R6400 before 1.0.1.18.Beta, R6700 before 1.0.1.14.Beta, R6900, R7000 before 1.0.7.6.Beta, R7100LG before KEV
    95Now
  • CVE-2021-45638Certain NETGEAR devices are affected by a stack-based buffer overflow by an unauthenticated attacker.
    39Monitor
  • CVE-2021-45610Certain NETGEAR devices are affected by a buffer overflow by an unauthenticated attacker.
    39Monitor
  • CVE-2021-38516Certain NETGEAR devices are affected by lack of access control at the function level.
    39Monitor
  • CVE-2023-33533Netgear D6220 with Firmware Version 1.0.0.80, D8500 with Firmware Version 1.0.3.60, R6700 with Firmware Version 1.0.2.26, and R6900 with Fir
    36Monitor
  • CVE-2021-45531NETGEAR D6220 devices before 1.0.0.76 are affected by command injection by an authenticated user.
    35Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

No fix version is recorded for this entry. Check the references for vendor advisories.

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

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Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Someone on the same network segment can trigger it.
  • No account or password is required.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
high · data or configuration can be modified
Availability
high · the service can be disrupted
Attack vector
Adjacent
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Weakness class (CWE)

—

CVSS vector

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

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

Noroxi analysis

No Noroxi analysis for this record yet

We don't hand-write analysis for all 385,000+ vulnerabilities; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.

We use this product, ask for help

Change log

No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.

References

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records