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CVE-2019-20740

20
FAUCET Score

CVE-2019-20740 describes a stack-based buffer overflow vulnerability affecting several NETGEAR router models, including the DGN2200v4, DGND2200Bv4, R7300, R8300, and R8500, in specific firmware versions. This flaw allows an authenticated user to achieve high impact on confidentiality, integrity, and availability. With a CVSS score of 6.8 (Medium), it requires high privileges and local network access for exploitation. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.0.0.110CPE matchmatch criteria
cpe:2.3:o:netgear:dgn2200_firmware:*:*:*:*:*:*:*:*
< 1.0.0.109CPE matchmatch criteria
cpe:2.3:o:netgear:dgnd2200b_firmware:*:*:*:*:*:*:*:*
< 1.0.0.70CPE matchmatch criteria
cpe:2.3:o:netgear:r7300_firmware:*:*:*:*:*:*:*:*
< 1.0.2.130CPE matchmatch criteria
cpe:2.3:o:netgear:r8300_firmware:*:*:*:*:*:*:*:*
< 1.0.2.130CPE matchmatch criteria
cpe:2.3:o:netgear:r8500_firmware:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

6.3MEDIUM

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

Attack Vector
ADJACENT_NETWORK
Attack Complexity
HIGH
Privileges Required
HIGH
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
0.4
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.46%
Probability of exploitation in next 30 days
EPSS Percentile
37.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0046 is in the 28th percentile among its peer group of 399 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 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 / 000060976/Security-Advisory-for-Post-Authentication-Stack-Overflow-on-Some-Routers-and-Gateways-PSV-2018-0258
Vendor Advisory