CVE-2021-31793 json
An issue exists on NightOwl WDB-20-V2 WDB-20-V2_20190314 devices that allows an unauthenticated user to gain access to snapshots and video…
published 2021-05-06 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-18674
- cvss
- 7.5
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.3%
- EPSS 1.3% chance of exploitation in 30 days, percentile 70%
- public exploits
- 0
- none known
Summary
An issue exists on NightOwl WDB-20-V2 WDB-20-V2_20190314 devices that allows an unauthenticated user to gain access to snapshots and video streams from the doorbell. The binary app offers a web server on port 80 that allows an unauthenticated user to take a snapshot from the doorbell camera via the /snapshot URI.
Exploit prediction
1.27% chance of exploitation in the next 30 days, higher than 70% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
| NVD | 2.0 | 5.0 | AV:N/AC:L/Au:N/C:P/I:N/A:N |
Classification
- Weakness
-
- CWE-306 Missing Authentication for Critical Functionality
References
-
gist.github.com
/tj-oconnor/16a4116050bbcb4717315f519b944f1f
third-party-advisory
-
cloud.binary.ninja
/embed/f4400a22-c438-403a-bf2a-939ca44a4f6b
third-party-advisory
Sources
- CVE List CVE-2021-31793
- NVD CVE-2021-31793
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.