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CVE-2020-28713

20
FAUCET Score

CVE-2020-28713 describes an incorrect access control vulnerability in the Night Owl Smart Doorbell firmware version 20190505. This flaw allows remote attackers to send unauthenticated push notification events, such as motion or doorbell triggers, to a user's mobile application. The vulnerability has a CVSS score of 6.5 (Medium), indicating a network-based attack with high impact on availability and low impact on integrity, but high attack complexity. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
20190505CPE matchmatch criteria
cpe:2.3:o:nightowlsp:smart_doorbell_firmware:20190505:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.5MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
LOW
Availability Impact
HIGH
Exploitability Score
2.2
Impact Score
4.2
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.36%
Probability of exploitation in next 30 days
EPSS Percentile
68.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0136 is in the 39th percentile among its peer group of 19,958 CVEs.

Social Chatter

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

Media Mentions

No media coverage found for this CVE.

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

Remediation

Remediation records are not available for this CVE.

References

cloud.binary.ninja / embed/26671c64-6859-48fb-b58e-af35dc982b35
PatchVendor Advisory
gist.github.com / tj-oconnor/dbfbef4d3b271d53fefbd24e1f0024f0
ExploitThird Party Advisory