CVE-2017-6077
CVE-2017-6077 is a security flaw in NETGEAR Wireless Router DGN2200, routers for homes and small offices. Someone who already has a way in can use NETGEAR Wireless Router DGN2200 to run their own code. The US Cybersecurity and Infrastructure Security Agency (CISA) added it to its catalog of flaws known to be used in attacks on 7 Mar 2022.[1]
NETGEAR Wireless Router DGN2200 is in things households have: home and small-office routers, so the fix matters at home as much as at work.
Description
CISA calls it a dGN2200 remote code execution in NETGEAR Wireless Router DGN2200. In its words: “NETGEAR DGN2200 wireless routers contain a vulnerability that allows for remote code execution.”[1]
The CVE record adds: “ping.cgi on NETGEAR DGN2200 devices with firmware through 10.0.0.50 allows remote authenticated users to execute arbitrary OS commands via shell metacharacters in the ping_IPAddr field of an HTTP POST request.”[2]
The underlying weakness is OS command injection (CWE-78), in MITRE’s list of common software weaknesses.
It scores 9.8 out of 10 on the Common Vulnerability Scoring System, which rates it critical, scored by NVD using CVSS 3.1.[2]
Affected versions
NVD’s record doesn’t list version ranges for it. CISA names the product as NETGEAR Wireless Router DGN2200.
Every device with NETGEAR Wireless Router DGN2200 needs the update.
Exploitation
CISA added it to its catalog of known exploited vulnerabilities on 7 Mar 2022, 1,839 days after it was made public. CISA lists a flaw only when it has reliable evidence of it being exploited, and gave US federal agencies until 7 Sep 2022 to fix it.[1]
FIRST’s Exploit Prediction Scoring System, which estimates how likely a flaw is to be used in attacks in the next 30 days from what it sees across the internet, puts it at 69%. That’s in the top 1% of the flaws it scores.[3]
CISA assesses it as automatable: attackers can run it against many targets at once.
CISA doesn’t say who was attacked, or how.
Fix
CISA’s required action: “Apply updates per vendor instructions.”[1]
- Update NETGEAR Wireless Router DGN2200 now.Open the router’s app, or its admin page in a browser, and look for a firmware update. Then turn on automatic updates, so the next fix arrives on its own.
- If the maker has stopped updating it, replace it.Routers stop getting fixes after a few years, and attackers keep a list of the ones that did. If there’s no newer firmware, it won’t be fixed.
Timeline
| Date | Event |
|---|---|
| The flaw is made public in the National Vulnerability Database, with a severity score of 9.8.[2] | |
| CISA adds it to its catalog of flaws known to be used in attacks.[1] | |
| CISA’s deadline for US government agencies to fix it.[1] | |
| FIRST puts the odds of it being used in attacks in the next 30 days at 69%.[3] |
See also
Other NETGEAR flaws
- CVE-2017-5521, NETGEAR Multiple Devices: exposure of sensitive information ·
- CVE-2017-6862, NETGEAR Multiple Devices: buffer overflow ·
- CVE-2017-6334, NETGEAR DGN2200 Devices: OS command injection ·
- CVE-2016-1555, NETGEAR Wireless Access Point (WAP) Devices: multiple WAP devices command injection ·
- CVE-2016-10174, NETGEAR WNR2000v5 Router: buffer overflow ·
Other OS command injection flaws
- CVE-2026-110447, Collabora Online – Built-in CODE Server: online – built-in CODE server OS command injection ·
- CVE-2026-106931, EG Secure Solutions SiteGuard Server Edition: OS command injection ·
- CVE-2026-83549, SonicWall SMA1000 Appliances: OS command injection ·
- CVE-2026-49869, Kestra OSS: OSS OS command injection ·
- CVE-2026-73570, Synacor Zimbra Collaboration Suite (ZCS): OS command injection ·
Added the same day
- CVE-2022-26486, Mozilla Firefox: use-after-free ·
- CVE-2022-26485, Mozilla Firefox: use-after-free ·
- CVE-2021-21973, VMware vCenter Server and Cloud Foundation: server side request forgery (SSRF) ·
- CVE-2020-8218, Pulse Secure Pulse Connect Secure: code injection ·
- CVE-2019-11581, Atlassian Jira Server and Data Center: server-side template injection ·
Every NETGEAR flaw on CISA’s list · Everything added in March 2022
References
- ^ Cybersecurity and Infrastructure Security Agency. “NETGEAR DGN2200 Remote Code Execution Vulnerability”. Known Exploited Vulnerabilities Catalog, added 7 Mar 2022.
- ^ National Institute of Standards and Technology. “CVE-2017-6077 Detail”. National Vulnerability Database, published 22 Feb 2017.
- ^ FIRST. “Exploit Prediction Scoring System”. EPSS 0.687, percentile 99.3, 31 Oct 2026.
- CVE Program. “CVE-2017-6077”. The official CVE record.
This article is built from CISA’s catalog (version 2026.10.30), NVD’s record and FIRST’s scores, kept in HARD’s database and checked every morning. The plain English is HARD’s.