CVE-2016-6277NETGEAR Multiple Routers Remote Code Execution Vulnerability

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/.

8.8 HIGHEPSS 99.80%⚡ Known Exploited (CISA KEV)NVD: Analyzed

Last updated: 2026-06-17 00:50 UTC

OverviewCVSS details

8.8HIGHCVSS 3.1

Score source: NVD
NVD status: Analyzed
Published: Dec 14, 2016
Assigner: mitre

Affected

d6220 firmware (netgear)

Versions: through 1.0.0.22

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Exploitation

Public exploit: Yes · 4 references
CISA KEV: Listed · Mar 7, 2022
KEV due date: Sep 7, 2022
Ransomware use: Unknown
SSVC: Exploitation active · Automatable no · Impact total

EPSS · FIRST, scored Nov 7

99.80%chance of exploitation in 30 days

Higher than 99.95% of CVEs

CVSS 3.1 · NVD

8.8High

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack vector: Network
Attack complexity: Low
Privileges required: None
User interaction: Required
Scope: Unchanged
Confidentiality impact: High
Integrity impact: High
Availability impact: High

CVSS 2.0 · NVD

9.3High

AV:N/AC:M/Au:N/C:C/I:C/A:C

Attack vector: Network
Attack complexity: Medium
Authentication: None
Confidentiality impact: Complete
Integrity impact: Complete
Availability impact: Complete

NVD status: Analyzed

Overview Affected Products References

NVD CVE.org

Overview

Severity

Score	Severity	Version	Vector String
8.8	HIGH	3.1NVD	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
9.3	HIGH	2.0NVD	AV:N/AC:M/Au:N/C:C/I:C/A:C

CISA required action

⚡ Known exploited · remediation due Sep 7, 2022

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Details

CVE ID: CVE-2016-6277
Status: Analyzed
Assigner (CNA): mitre
Published: Dec 14, 2016
Last modified: 2026-06-17 00:50 UTC
Weaknesses: CWE-352

Sources

Refreshed hourly from the sources above. Last fetched 2026-11-08 12:29 UTC.