CVE-2016-10174
CriticalExploitedPublic exploitThe NETGEAR WNR2000v5 router contains a buffer overflow in the hidden_lang_avi parameter when invoking the URL /apply.cgi?/lang_check.html.
Published Jan 30, 2017 · Updated Apr 21, 2026
Key Facts
Patch immediately- CVE-2016-10174 is a critical-severity vulnerability (CVSS 9.8 v3.1) affecting D6100 Firmware (Netgear), D7000 Firmware (Netgear), D7800 Firmware (Netgear) and 22 more products.
- It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Mar 25, 2022. Public exploit code is available.
- EPSS estimates a 83% probability of exploitation in the next 30 days.
- No fixed version is listed yet; check the vendor advisory for mitigations.
- Brandefense priority: patch immediately, because it is listed as exploited in the wild.
CVSS v3.1
9.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS (30-day exploit likelihood)
83%
Higher than 99.6% of all scored CVEs
Exploited in the wild
Yes
4 catalog listings
Public exploit code
Available
Proof-of-concept or weaponized module
Get the full CVE-2016-10174 brief as a PDF
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Description
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.
Known-Exploited Catalog Listings
| Catalog | Added | Remediation due | Ransomware use |
|---|---|---|---|
| CISA KEV | Mar 25, 2022 | Apr 15, 2022 | Not reported |
| Industry KEV feed | Mar 25, 2022 | Apr 15, 2022 | Not reported |
| CIRCL KEV | Mar 25, 2022 | Apr 15, 2022 | Not reported |
| ENISA EUVD | Mar 25, 2022 | n/a | Not reported |
Required action: Apply updates per vendor instructions.
Affected Products
28 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| D6100 FirmwareNetgear | See advisory | n/a |
| D7000 FirmwareNetgear | See advisory | n/a |
| D7800 FirmwareNetgear | See advisory | n/a |
| Jnr1010v2 FirmwareNetgear | See advisory | n/a |
| Jnr3300 FirmwareNetgear | See advisory | n/a |
Timeline
Publicly disclosed
Jan 30, 2017
Added to CISA KEV
Mar 25, 2022
Added to Industry KEV feed
Mar 25, 2022
Added to CIRCL KEV
Mar 25, 2022
Added to ENISA EUVD
Mar 25, 2022
Last updated
Apr 21, 2026
Weakness Type
- CWE-120 Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
References
- advisoryhttp://kb.netgear.com/000036549/Insecure-Remote-Access-and-Command-Execution-Security-Vulnerability
- advisory95867
- exploithttp://seclists.org/fulldisclosure/2016/Dec/72
- exploitVulnCheck exploitation report
- exploitMSF netgear_wnr2000_rce.rb
FAQ
Common Questions.
The NETGEAR WNR2000v5 router contains a buffer overflow in the hidden_lang_avi parameter when invoking the URL /apply.cgi?/lang_check.html.
Affected: D6100 Firmware (Netgear); D7000 Firmware (Netgear); D7800 Firmware (Netgear), among others. The full list is in the CVE brief.
It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Mar 25, 2022.
Yes. It was added on Mar 25, 2022 with a federal remediation due date of Apr 15, 2022.
Public exploit code is available.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.
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