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CVE-2019-20640

27
FAUCET Score

CVE-2019-20640 describes a stack-based buffer overflow vulnerability affecting numerous NETGEAR router models, including the D3600, D6000, D7000, R6220, and XR500, among others, prior to specific firmware versions. This vulnerability carries a high CVSS score of 8.8, indicating it can be exploited by an unauthenticated attacker over the adjacent network with low attack complexity, potentially leading to high impact on confidentiality, integrity, and availability. Currently, 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
< 1.0.0.76CPE matchmatch criteria
cpe:2.3:o:netgear:d3600_firmware:*:*:*:*:*:*:*:*
< 1.0.0.76CPE matchmatch criteria
cpe:2.3:o:netgear:d6000_firmware:*:*:*:*:*:*:*:*
< 1.1.00.32CPE matchmatch criteria
cpe:2.3:o:netgear:d6200_firmware:*:*:*:*:*:*:*:*
< 1.0.1.68CPE matchmatch criteria
cpe:2.3:o:netgear:d7000_firmware:*:*:*:*:*:*:*:*
< 1.0.1.18CPE matchmatch criteria
cpe:2.3:o:netgear:jr6150_firmware:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

8.8HIGH

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

Attack Vector
ADJACENT_NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.56%
Probability of exploitation in next 30 days
EPSS Percentile
43.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0056 is in the 43rd percentile among its peer group of 1,857 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.2 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 / 000061504/Security-Advisory-for-Pre-Authentication-Stack-Overflow-on-Some-Routers-and-Gateways-PSV-2018-0304
Vendor Advisory