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Netgear CVE-2016-10174

CRITICAL
Classic Buffer Overflow (CWE-120)
2017-01-30 cve@mitre.org
9.8
CVSS 3.1 · NVD
View

Vulnerability Assessment

Weakness
CWE
ASVS 5.0
V15 - Secure Coding and Architecture Buffer copy size validation
MITRE ATT&CK

1 technique across 1 tactic: Execution

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Impact

CVSS score of 9.8 (CRITICAL). Attack characteristics: network attack vector, low complexity, no privileges required, no user interaction not required. CISA has confirmed active exploitation in the wild. Public proof-of-concept exploit code is available. EPSS exploitation probability: 91.07%.

Exploit ScenarioDerived

A remote attacker could overflow a buffer to corrupt adjacent memory by sending crafted requests to the affected application. No authentication is required to exploit this vulnerability.

Emergency Immediate action required. Why: CRITICAL + in CISA KEV (actively exploited), no patch available.
Exploited in the wild (CISA KEV) No patch listed yet 91.1% exploitation probability (EPSS)

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AnalysisAI

The NETGEAR WNR2000v5 router contains a buffer overflow in the hidden_lang_avi parameter when invoking the URL /apply.cgi?/lang_check.html. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Actively exploited in the wild (cisa kev) and public exploit code available.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Always validate buffer sizes before copy operations. Use bounded functions (strncpy, snprintf). Enable compiler protections.

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

This vulnerability is classified as Buffer Copy without Size Check (CWE-120), which allows attackers to overflow a buffer to corrupt adjacent memory. The NETGEAR WNR2000v5 router contains a buffer overflow in the hidden_lang_avi parameter when invoking the URL /apply.cgi?/lang_check.html. This buffer overflow can be exploited by an unauthenticated attacker to achieve remote code execution. Affected products include: Netgear D6100 Firmware, Netgear D7000 Firmware, Netgear D7800 Firmware, Netgear Jnr1010V2 Firmware, Netgear Jnr3300 Firmware.

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  • Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 9.8 CRITICAL
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

2
Added to CISA KEV
Apr 21, 2026 - 15:31 CISA
CVE Published
Jan 30, 2017 - 04:59 cve.org
CRITICAL 9.8

DescriptionCVE.org

The NETGEAR WNR2000v5 router contains a buffer overflow in the hidden_lang_avi parameter when invoking the URL /apply.cgi?/lang_check.html. This buffer overflow can be exploited by an unauthenticated attacker to achieve remote code execution.

Threat Intelligence Overview

Threat Score
7.7/10
Composite threat intelligence
EPSS Score
91.1%
Top 0% exploitable
Exploit
POC
Public exploit code exists
Data Quality
6 sources
Confidence: High

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity CRITICAL
CISA KEV Yes
Public POC Yes
EPSS 91.1%
Patch available No
Active threat Yes
Deciding rule
CRITICAL + in CISA KEV (actively exploited), no patch available
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Immediate
Exploitation· derived
Active
System Exposure· derived
Open
Automatable· derived
Yes
Human Impact· derived
High

Priority Score

225
Low Medium High Critical
KEV: +50
EPSS: +91
CVSS: +49
PoC: +20
Weaponized: +15
Threat intel: 0
Gov advisory: 0

Attack Technique

A buffer overflow occurs when a program writes more data to a memory buffer than it was allocated to hold, causing the excess data to spill into adjacent memory regions.

Remote Code Execution represents the critical moment when an attacker successfully runs arbitrary code on a target system without physical access.

Affected Products (CPE)CVE.org

cpe:2.3:o:netgear:d6100_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:netgear:d7000_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:netgear:d7800_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:netgear:jnr1010v2_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:netgear:jnr3300_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:netgear:jwnr2010v5_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:netgear:r2000_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:netgear:r6100_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:netgear:r6220_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:netgear:r7500_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:netgear:r7500v2_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:netgear:wndr3700v4_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:netgear:wndr3800_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:netgear:wndr4300_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:netgear:wndr4300v2_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:netgear:wndr4500v3_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:netgear:wndr4700_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:netgear:wnr1000v2_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:netgear:wnr1000v4_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:netgear:wnr2000v3_firmware:-:*:*:*:*:*:*:*
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The NETGEAR WNR2000v5 router allows an administrator to perform sensitive actions by invoking the apply.cgi URL on the w

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An authenticated OS command injection vulnerability exists in Netgear routers (tested on the DGN1000B model firmware ver

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