CVE-2025-9382Public exploit

Root shell access via SD-card marker file

Published Aug 24, 2025 · Updated Aug 25, 2025

Backdoor functionality in the Telnet service of FNKvision Y215 CCTV Camera 10.194.120.40 allows physically proximate attackers to obtain a root shell. On boot, firmware checks only whether /mnt/sda0/s1_rf_test_config exists on an inserted SD card and starts /usr/sbin/telnetd without reading the file. Physical access to insert the card and reboot the camera is required; the exposed Telnet service becomes network-reachable, and separate hardcoded credentials provide root access.

CVSS severity6.4
Medium
EPSS probability0.18%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Backdoor functionality in the Telnet service of FNKvision Y215 CCTV Camera 10.194.120.40 allows physically proximate attackers to obtain a root shell. On boot, firmware checks only whether /mnt/sda0/s1_rf_test_config exists on an inserted SD card and starts /usr/sbin/telnetd without reading the file. Physical access to insert the card and reboot the camera is required; the exposed Telnet service becomes network-reachable, and separate hardcoded credentials provide root access.

The record

CVE
CVE-2025-9382
Published
Aug 24, 2025
Updated
Aug 25, 2025
Vendor
FNKvision
Product
Y215 CCTV Camera
Classifications
CWE-912, T1200
Attack vector
physical
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 24, 2025CVE publishedPublication date reported by the CVE source.
  2. Aug 25, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=10.194.120.40

What conditions does exploitation require?

Attack vectorphysical
Required privilegesunauthenticated

What is affected?

FNKvision · Y215 CCTV Cameraversion=10.194.120.40

Published CVSS scores

4.5VulDBCVSS:4.0/AV:P/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P
6.2VulDBAV:L/AC:H/Au:N/C:C/I:C/A:C
6.4VulDBCVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:H/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.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorphysical
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-912Hidden Functionality
T1200Hardware Additions

Public exploit references

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

Technologies

Your stack

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Your stack

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