SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityAnalyzed

CVE-2016-6277

NETGEAR Multiple Routers Remote Code Execution Vulnerability

KEVEXPLOIT ×2 ✓HIGH 8.8EPSS 99.8%

Does this matter?

Known to be exploited in the wild (CISA KEV, CISA remediation deadline 7 September 2022). Treat as an emergency change: patch or isolate now, then hunt for prior compromise.

Description

NETGEAR R6250 before 1.0.4.6.Beta, R6400 before 1.0.1.18.Beta, R6700 before 1.0.1.14.Beta, R6900, R7000 before 1.0.7.6.Beta, R7100LG before 1.0.0.28.Beta, R7300DST before 1.0.0.46.Beta, R7900 before 1.0.1.8.Beta, R8000 before 1.0.3.26.Beta, D6220, D6400, D7000, and possibly other routers allow remote attackers to execute arbitrary commands via shell metacharacters in the path info to cgi-bin/.

CVSS 3.1
8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS
99.80% probability · 100th percentile
Public exploits
2 in Exploit-DB · verified · first 7 December 2016
CISA KEV
Listed 7 March 2022 · due 7 September 2022
Weakness
CWE-352
Affected
netgear/d6220 firmware · netgear/d6400 firmware · netgear/r6250 firmware · netgear/r6400 firmware · netgear/r6700 firmware · netgear/r6900 firmware · netgear/r7000 firmware · netgear/r7100lg firmware · netgear/r7300dst firmware · netgear/r7900 firmware · netgear/r8000 firmware
Source
cve@mitre.org
EPSS trend
0%50%100%30 October 2026: 99.80%30 October 202630 October 2026

EPSS 99.8% since 30 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-2016-6277

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-41598source ↗Netgear R7000 / R6400 - 'cgi-bin' Command Injection (Metasploit)cgi · Metasploitremote13 March 2017yes
EDB-40889source ↗Netgear R7000 - Command Injectioncgi · Acew0rmwebapps7 December 2016yes

References

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