CVE-2021-40415Public exploitNetwork attack vector

Recording deletion and reboot via permission fallback

Published Jan 28, 2022 · Updated Apr 15, 2025

Improper access control in Reolink RLC-410W 3.0.0.136_20121102 allows remote authenticated users to erase recordings and reboot. The cgi_check_ability switch lacks a Format API case, so its default branch assigns permission value 7 and authorizes the privileged operation. A non-administrative account can format the SD card, deleting stored recordings and forcing the camera to reboot.

CVSS severity7.1
High
EPSS probability0.81%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Improper access control in Reolink RLC-410W 3.0.0.136_20121102 allows remote authenticated users to erase recordings and reboot. The cgi_check_ability switch lacks a Format API case, so its default branch assigns permission value 7 and authorizes the privileged operation. A non-administrative account can format the SD card, deleting stored recordings and forcing the camera to reboot.

The record

CVE
CVE-2021-40415
Published
Jan 28, 2022
Updated
Apr 15, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-284, CWE-276, T1529, T1485
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jan 28, 2022CVE publishedPublication date reported by the CVE source.
  2. Apr 15, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

6.8NIST NVDAV:N/AC:L/Au:S/C:N/I:N/A:C
7.1Cisco TalosCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H
6.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-284Improper Access Control
CWE-276Incorrect Default Permissions
T1529System Shutdown/Reboot
T1485Data Destruction

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo