SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityAnalyzed

CVE-2016-10174

NETGEAR WNR2000v5 Router Buffer Overflow Vulnerability

KEVEXPLOIT ×2 ✓CRITICAL 9.8EPSS 83.3%

Does this matter?

Known to be exploited in the wild (CISA KEV, CISA remediation deadline 15 April 2022). Treat as an emergency change: patch or isolate now, then hunt for prior compromise.

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.

CVSS 3.1
9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
83.33% probability · 100th percentile
Public exploits
2 in Exploit-DB · verified · first 21 December 2016
CISA KEV
Listed 25 March 2022 · due 15 April 2022
Weakness
CWE-120
Affected
netgear/d6100 firmware · netgear/d7000 firmware · netgear/d7800 firmware · netgear/jnr1010v2 firmware · netgear/jnr3300 firmware · netgear/jwnr2010v5 firmware · netgear/r2000 firmware · netgear/r6100 firmware · netgear/r6220 firmware · netgear/r7500 firmware · netgear/r7500v2 firmware · netgear/wndr3700v4 firmware · netgear/wndr3800 firmware · netgear/wndr4300 firmware · netgear/wndr4300v2 firmware · netgear/wndr4500v3 firmware · netgear/wndr4700 firmware · netgear/wnr1000v2 firmware · netgear/wnr1000v4 firmware · netgear/wnr2000v3 firmware · +8 more
Source
cve@mitre.org
EPSS trend
0%43%85%26 October 2026: 83.33%26 October 202626 October 2026

EPSS 83.3% since 26 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

CISA notes

Apply updates per vendor instructions. https://nvd.nist.gov/vuln/detail/CVE-2016-10174

Public exploits (2)

Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.

EDB-IDTitleTypePublishedVerified
EDB-41719source ↗Netgear WNR2000v5 - 'hidden_lang_avi' Remote Stack Overflow (Metasploit)hardware · Pedro Ribeiroremote24 March 2017yes
EDB-40949source ↗Netgear WNR2000v5 - Remote Code Executioncgi · Pedro Ribeiroremote21 December 2016no

References

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.