What is CVE-2021-40150?

CVE-2021-40150 is a high-severity vulnerability in Reolink E1 Zoom, classified under Files or Directories Accessible to External Parties. CVSS score: 7.5/10. Published 2022-07-17.

How severe is CVE-2021-40150?

High severity. CVSS v3 base score is 7.5 out of 10.

Is CVE-2021-40150 known to be exploited?

5 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Reolink E1 Zoom

CVE-2021-40150

The web server of the E1 Zoom camera through 3.0.0.716 discloses its configuration via the /conf/ directory that is mapped to a publicly accessible path. In this way an attacker can download the entire NGINX/FastCGI configurations by querying the /conf/nginx.conf or /conf/fastcgi.conf URI.

Published 2022-07-17 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.038 (89.7th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 90th percentile — 89.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.037 · newest: 0.038 · change: +0.001

Affected products

Weakness classification (CWE)

CWE-552 — Files or Directories Accessible to External Parties

Public proof-of-concept exploits

References

github.com/MrTuxracer/advisories/blob/master/CVEs/CVE-2021-40150.txt (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2021-40150?: CVE-2021-40150 is a high-severity vulnerability in Reolink E1 Zoom, classified under Files or Directories Accessible to External Parties. CVSS score: 7.5/10. Published 2022-07-17.
How severe is CVE-2021-40150?: High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2021-40150 known to be exploited?: 5 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.