What is CVE-2016-10174?

CVE-2016-10174 is a critical-severity vulnerability in NETGEAR D6100, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 9.8/10. Published 2017-01-30.

How severe is CVE-2016-10174?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Is CVE-2016-10174 known to be exploited?

Yes. CVE-2016-10174 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2022-03-25), indicating it is being actively exploited. 4 public proof-of-concept repositories are indexed.

Buffer overflow in NETGEAR D6100

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. This buffer overflow can be exploited by an unauthenticated attacker to achieve remote code execution.

Vulnerability class: Buffer Overflow

Published 2017-01-30 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.833 (99.7th percentile), scored 2026-10-19.

High probability of exploitation in the next 30 days — patch promptly. 100th percentile — 99.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.833 · newest: 0.833 · change: 0.000

Affected products

Weakness classification (CWE)

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

CISA KEV (Known Exploited Vulnerabilities)

This CVE is on the CISA KEV catalog, added on 2022-03-25. CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.

BOD 22-01 due date: 2022-04-15.

Required action: Apply updates per vendor instructions.

Public proof-of-concept exploits

References

seclists.org/fulldisclosure/2016/Dec/72 (Exploit, Mailing List, VDB Entry, Third Party Advisory)
raw.githubusercontent.com/pedrib/PoC/master/advisories/netgear-wnr2000.txt (Technical Description, Exploit, Third Party Advisory)
www.securityfocus.com/bid/95867 (VDB Entry, Third Party Advisory, vdb-entry, Broken Link)
www.exploit-db.com/exploits/41719/ (Exploit, VDB Entry, Third Party Advisory, exploit)
kb.netgear.com/000036549/Insecure-Remote-Access-and-Command-Execution-Security-… (Vendor Advisory)
www.exploit-db.com/exploits/40949/ (Exploit, VDB Entry, Third Party Advisory, exploit)
134c704f-9b21-4f2e-91b3-4a467353bcc0 (US Government Resource)

Frequently asked questions

What is CVE-2016-10174?: CVE-2016-10174 is a critical-severity vulnerability in NETGEAR D6100, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 9.8/10. Published 2017-01-30.
How severe is CVE-2016-10174?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2016-10174 known to be exploited?: Yes. CVE-2016-10174 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2022-03-25), indicating it is being actively exploited. 4 public proof-of-concept repositories are indexed.