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CVE-2019-20731

22
FAUCET Score

CVE-2019-20731 describes a buffer overflow vulnerability affecting numerous NETGEAR devices, including various D-series, EX-series, R-series, WN-series, and WNDR-series models, where an authenticated user could trigger the flaw. Rated 6.7 MEDIUM, this vulnerability requires high privileges (PR:H) and local access (AV:L) to achieve high impact on confidentiality, integrity, and availability (C:H/I:H/A:H). Despite its potential impact, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.0.0.40CPE matchmatch criteria
cpe:2.3:o:netgear:d6220_firmware:*:*:*:*:*:*:*:*
< 1.0.0.74CPE matchmatch criteria
cpe:2.3:o:netgear:d6400_firmware:*:*:*:*:*:*:*:*
< 1.0.0.74CPE matchmatch criteria
cpe:2.3:o:netgear:d7000_firmware:*:*:*:*:*:*:*:*
< 1.0.3.39CPE matchmatch criteria
cpe:2.3:o:netgear:d8500_firmware:*:*:*:*:*:*:*:*
< 1.0.0.70CPE matchmatch criteria
cpe:2.3:o:netgear:ex3700_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
0.37%
Probability of exploitation in next 30 days
EPSS Percentile
29.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0037 is in the 78th 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 / 000061196/Security-Advisory-for-Post-Authentication-Buffer-Overflow-on-Some-Routers-Gateways-and-Extenders-PSV-2017-2254
Vendor Advisory