NVD / CVE Program· CNA mitre

CVE-2016-10174: The NETGEAR WNR2000v5 router contains a buffer overflow in the hidden_lang_avi parameter when invoking the URL /apply.cgi?/lang_check.html.

CriticalCVSS 9.8 · v3.1KEVWeaponized No fix recorded

Noroxi assessment

Priority: Now (action score 94/100)

CISA has confirmed exploitation in the wild (Mar 25, 2022). Remediation deadline for US federal agencies: Apr 15, 2022.
A ready-made attack module is public (Metasploit); exploiting it takes no special expertise.
Probability of exploitation in the next 30 days: 83.3% (FIRST EPSS); higher than 99.6% of all records.
Anyone who can reach it over the internet can trigger it. No account or password is required. No user action is required. No special conditions are required; it is repeatable.
According to CISA the attack is automatable: targets can be found by mass scanning.
According to the record, no fixed version is available yet.

Patch today or shut off access. Until a fix is released, restrict access to the affected component and follow the vendor's advisory.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · CISA KEV · FIRST EPSS

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.

BDU:2017-02584

Published: Jan 30, 2017
Updated: Jun 16, 2026
EPSS: 83.3% · 99th percentile
CWE: CWE-120

Report tools

JSON

Action score

Now

Patch today or shut off access.

CVSS: 39 / 40 · 9.8 / 10
CISA KEV: 30 / 30 · Listed
EPSS: 25 / 30 · 83.3%

CISA SSVC decision

Exploitation: active
Automatable: yes
Technical impact: total

Vulnrichment: CISA's decision-tree inputs.

Actively exploited in the wild

CISA added this to its Known Exploited Vulnerabilities catalog on Mar 25, 2022. That signals real attacks, not theory.

Remediation deadline for US federal agencies: Apr 15, 2022.

Get told when this record changes

In CISA KEV: exploitation in the wild confirmed
Weaponized exploit exists
No fixed version yet

If any of these changes, we'll tell you in the daily email digest.

Is your version affected? Check it

Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

Vendor	Product	CPE
netgear	d6100 firmware	cpe:2.3:o:netgear:d6100_firmware
netgear	d6100	cpe:2.3:h:netgear:d6100
netgear	d7000 firmware	cpe:2.3:o:netgear:d7000_firmware
netgear	d7000	cpe:2.3:h:netgear:d7000
netgear	d7800 firmware	cpe:2.3:o:netgear:d7800_firmware
netgear	d7800	cpe:2.3:h:netgear:d7800
netgear	jnr1010v2 firmware	cpe:2.3:o:netgear:jnr1010v2_firmware
netgear	jnr1010v2	cpe:2.3:h:netgear:jnr1010v2
netgear	jnr3300 firmware	cpe:2.3:o:netgear:jnr3300_firmware
netgear	jnr3300	cpe:2.3:h:netgear:jnr3300
netgear	jwnr2010v5 firmware	cpe:2.3:o:netgear:jwnr2010v5_firmware
netgear	jwnr2010v5	cpe:2.3:h:netgear:jwnr2010v5

and 44 more

Affected versions

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

netgear d6100 firmwareall versions
netgear d7000 firmwareall versions
netgear d7800 firmwareall versions
netgear jnr1010v2 firmwareall versions
netgear jnr3300 firmwareall versions
netgear jwnr2010v5 firmwareall versions
netgear r2000 firmwareall versions
netgear r6100 firmwareall versions

+12 more rows

netgear r6220 firmwareall versions
netgear r7500 firmwareall versions
netgear r7500v2 firmwareall versions
netgear wndr3700v4 firmwareall versions
netgear wndr3800 firmwareall versions
netgear wndr4300 firmwareall versions
netgear wndr4300v2 firmwareall versions
netgear wndr4500v3 firmwareall versions
netgear wndr4700 firmwareall versions
netgear wnr1000v2 firmwareall versions
netgear wnr1000v4 firmwareall versions
netgear wnr2000v3 firmwareall versions

Same product

netgear: all records

Other highest-scoring records for the same primary product.

CVE-2017-18764Certain NETGEAR devices are affected by command injection by an unauthenticated attacker.
36Monitor
CVE-2018-21208Certain NETGEAR devices are affected by command injection by an unauthenticated attacker.
35Monitor
CVE-2018-21113Certain NETGEAR devices are affected by command injection by an unauthenticated attacker.
35Monitor

Published before and after this one in the same product

Later →CVE-2019-20767Apr 15, 2020 · Certain NETGEAR devices are affected by a stack-based buffer overflow by an authenticated user.
28Monitor
Later →CVE-2019-20727Apr 16, 2020 · Certain NETGEAR devices are affected by command injection by an authenticated user.
27Monitor
Later →CVE-2019-20738Apr 16, 2020 · Certain NETGEAR devices are affected by stored XSS.
21Monitor

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

Weaponized

A ready exploit tool or active in-the-wild use is known for this vulnerability. This should be your top priority.

Evidence

Metasploit module ×1
Exploit-DB entry ×2

Noroxi does not host or link to exploit code. Metasploit module names and Nuclei template ids are shown (names, not code); Exploit-DB entries and PoC repositories are given as counts only.

Public exploit evidence
Source	Kind	Date
Exploit-DB entry	remote	2016-12-21
Exploit-DB entry	remote	2017-03-24
Metasploit module	exploit/linux/http/netgear_wnr2000_rceNETGEAR WNR2000v5 (Un)authenticated hidden_lang_avi Stack Buffer Overflowexploit	2016-12-20

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.

MetasploitDec 20, 2016-41 d
First PoCDec 21, 2016-40 d
PublishedJan 30, 2017
CISA KEVMar 25, 2022+1880 d
TodayNov 13, 2026+3575 d

Not on record for this CVE: EPSS history · patch commit or PR link · researcher credit · variant or chain candidate · public bounty program.

Technical details

Attack conditions

Anyone who can reach it over the internet 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: Network
Attack complexity: Low
Privileges required: None
User interaction: None
Scope: Unchanged
Confidentiality impact: High
Integrity impact: High
Availability impact: High

Weakness class (CWE)

CWE-120 · Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

CVSS vector

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

nvd-primary

Root cause

When data is copied, the source length is not compared with the size of the destination buffer. Excess data overwrites adjacent memory.

The bug in code

The whole CWE-120 class

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

Vulnerable

1char buf[256];
2memcpy(buf, pkt->data, pkt->len);

Fixed

1char buf[256];
2if (pkt->len > sizeof(buf)) {
3  return -EINVAL;
4}
5memcpy(buf, pkt->data, pkt->len);

Attack context

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

Attack patterns (CAPEC)

ATT&CK techniques

—

Change log (0)

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

References

kb.netgear.com/000036549/Insecure-Remote-Access-and-Command-Execution-Security-Vulnerability

Show all references (2 more)

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

All records