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CVE-2019-20737

21
FAUCET Score

CVE-2019-20737 describes a stack-based buffer overflow vulnerability affecting numerous NETGEAR router and extender models, including the D6220, D7000v2, R7000, and EX7000, among others, across various firmware versions. This flaw allows an unauthenticated attacker to potentially execute arbitrary code or cause a denial of service. With a CVSS score of 6.7 (Medium), the vulnerability has a local attack vector, low attack complexity, and high impacts on confidentiality, integrity, and availability. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.0.0.44CPE matchmatch criteria
cpe:2.3:o:netgear:d6220_firmware:*:*:*:*:*:*:*:*
< 1.0.0.78CPE matchmatch criteria
cpe:2.3:o:netgear:d6400_firmware:*:*:*:*:*:*:*:*
< 1.0.0.51CPE matchmatch criteria
cpe:2.3:o:netgear:d7000_firmware:*:*:*:*:*:*:*:*
< 1.0.3.42CPE matchmatch criteria
cpe:2.3:o:netgear:d8500_firmware:*:*:*:*:*:*:*:*
< 1.0.0.106CPE matchmatch criteria
cpe:2.3:o:netgear:dgn2200_firmware:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

5.6MEDIUM

CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:L/A:L

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
LOW
Availability Impact
LOW
Exploitability Score
0.8
Impact Score
4.7
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.35%
Probability of exploitation in next 30 days
EPSS Percentile
27.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0035 is in the 76th percentile among its peer group of 3,720 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

kb.netgear.com / 000061188/Security-Advisory-for-Pre-Authentication-Stack-Overflow-on-Some-Routers-Gateways-and-Extenders-PSV-2017-2016
Vendor Advisory