CVE-2021-40150
CVE-2021-40150 is a high-severity vulnerability in Reolink E1 Zoom Firmware with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-552.
Key facts
- Severity: High (CVSS 3.x base score 7.5)
- EPSS exploit prediction: 3% (87th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-552
- Affected product: Reolink E1 Zoom Firmware
- Published:
- Last modified:
Description
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.
Frequently asked questions
- What is 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.
- How severe is CVE-2021-40150?
- CVE-2021-40150 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
- Is CVE-2021-40150 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (87th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2021-40150?
- CVE-2021-40150 affects Reolink E1 Zoom Firmware. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2021-40150?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- When was CVE-2021-40150 published?
- CVE-2021-40150 was published on 2022-07-17 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:o:reolink:e1_zoom_firmware:*:*:*:*:*:*:*:*
More vulnerabilities in Reolink E1 Zoom Firmware
- CVE-2021-40149 — Medium (CVSS 5.9): The web server of the E1 Zoom camera through 3.0.0.716 discloses its SSL private key via the root web server directory.…
All CVEs affecting Reolink E1 Zoom Firmware →
Other CWE-552 (Files or Directories Accessible to External Parties) vulnerabilities
- CVE-2025-41240 — Critical (CVSS 10.0): Three Bitnami Helm charts mount Kubernetes Secrets under a predictable path (/opt/bitnami/*/secrets) that is located…
- CVE-2024-56731 — Critical (CVSS 10.0): Gogs is an open source self-hosted Git service. Prior to version 0.13.3, it's still possible to delete files under the…
- CVE-2024-6209 — Critical (CVSS 10.0): Unauthorized file access in WEB Server in ABB ASPECT - Enterprise v3.08.01; NEXUS Series v3.08.01 ; MATRIX Series…
- CVE-2025-14771 — Critical (CVSS 9.9): Files or directories accessible to external parties vulnerability in ABB T-MAC Plus. This issue affects T-MAC Plus:…
- CVE-2024-39931 — Critical (CVSS 9.9): Gogs through 0.13.0 allows deletion of internal files.
- CVE-2021-43821 — Critical (CVSS 9.9): Opencast is an Open Source Lecture Capture & Video Management for Education. Opencast before version 9.10 or 10.6…
Browse all CWE-552 (Files or Directories Accessible to External Parties) vulnerabilities →