Is CVE-2016-6277 in the CISA KEV catalog?

Yes. CVE-2016-6277 is on the CISA Known Exploited Vulnerabilities list, added 2022-03-07.

What is the CVSS severity of CVE-2016-6277?

CVE-2016-6277 has a CVSS v3 base score of 8.8 (HIGH).

What is the EPSS score for CVE-2016-6277?

CVE-2016-6277 has an EPSS score of 99.78% (100th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix or mitigate CVE-2016-6277?

No published fix for CVE-2016-6277 has been found yet. It is on the CISA Known Exploited Vulnerabilities list; federal agencies must remediate by 2022-09-07. Apply the vendor's mitigations per CISA's guidance.

CVE & CISA-KEV Catalog

CVE-2016-6277

HIGHCISA KEVEPSS 100th pctl

8.8

CVSS v3

NVD

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/.

CWE-352Cross-Site Request Forgery

How to fix

Actively exploited, no published fix found yet

CISA required action: Apply updates per vendor instructions.

Federal remediation due: 2022-09-07

Mitigation guidance may be in the linked vendor advisories in the References section below.

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CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionRequired

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

99.78%probability of exploitation in 30 days

100thpercentile

Very high risk: more likely to be exploited than 100% of all known CVEs.

Known Exploited Vulnerability (CISA KEV)

NETGEAR Multiple Routers Remote Code Execution Vulnerability

NETGEAR confirmed multiple routers allow unauthenticated web pages to pass form input directly to the command-line interface, permitting remote code execution.

Apply updates per vendor instructions.

Remediation due: 2022-09-07

References

Patch1

kb.netgear.com

Exploit3

Mitigation1

sj-vs.net

Third-Party Advisory3

Government Resource1

cisa.gov

Related Vulnerabilities

Other CWE-352 (Cross-Site Request Forgery) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2014-0054	Medium	6.8	91%	-	Fix
CVE-2013-6429	Medium	6.8	90%	-	Fix
CVE-2022-41622	High	8.8	88%	-	-
CVE-2018-7700	High	8.8	75%	-	-
CVE-2015-2295	Medium	6.8	66%	-	-
CVE-2015-6973	Medium	6.8	65%	-	-

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-04-21.