CVE-2026-52482

Root command execution via unauthenticated Telnet shell

Published Sep 9, 2026 · Updated Sep 9, 2026

Missing authentication in SJRC F11 SJ-GPS-PRO firmware build 2019-09-17 allows remote attackers to execute commands as root via Telnet. The inetd service accepts connections on TCP port 23 and starts /app/sh_for_telnet as root; that wrapper invokes /bin/sh -l without a login check. Any client able to join the drone's open Wi-Fi network can reach the shell without credentials and gain full control of the embedded system.

CVSS severity8.8
High
EPSS probability0.32%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing authentication in SJRC F11 SJ-GPS-PRO firmware build 2019-09-17 allows remote attackers to execute commands as root via Telnet. The inetd service accepts connections on TCP port 23 and starts /app/sh_for_telnet as root; that wrapper invokes /bin/sh -l without a login check. Any client able to join the drone's open Wi-Fi network can reach the shell without credentials and gain full control of the embedded system.

The record

CVE
CVE-2026-52482
Published
Sep 9, 2026
Updated
Sep 9, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-306, T1059.004
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 9, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 9, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

8.8GitHub Security AdvisoryCVSS:3.1/AV:A/AC:L/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)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-306Missing Authentication for Critical Function
T1059.004Unix Shell

Public exploit references

No public exploit references are available in this record.

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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