CVE-2025-9603Public exploitNetwork attack vector

Authenticated command execution via hostname filter bypass

Published Aug 29, 2025 · Updated Aug 29, 2025

Command injection in Telesquare TLR-2005KSH 1.2.4 allows remote authenticated users to execute arbitrary commands via the Hostname parameter. The LanCfg handler in internet.cgi passes the attacker-controlled hostname into the system function after a filter that still accepts command substitution or newline separators. Access to the router's CGI management interface is required, and successful exploitation runs commands with the privileges of that service.

CVSS severity9.8
Critical
EPSS probability7.58%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Command injection in Telesquare TLR-2005KSH 1.2.4 allows remote authenticated users to execute arbitrary commands via the Hostname parameter. The LanCfg handler in internet.cgi passes the attacker-controlled hostname into the system function after a filter that still accepts command substitution or newline separators. Access to the router's CGI management interface is required, and successful exploitation runs commands with the privileges of that service.

The record

CVE
CVE-2025-9603
Published
Aug 29, 2025
Updated
Aug 29, 2025
Vendor
Telesquare
Product
TLR-2005KSH
Classifications
CWE-77, CWE-74, T1059.004
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 29, 2025CVE publishedPublication date reported by the CVE source.
  2. Aug 29, 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=1.2.4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Telesquare · TLR-2005KSHversion=1.2.4

Published CVSS scores

2.1VulDB CNACVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
6.5VulDB CNAAV:N/AC:L/Au:S/C:P/I:P/A:P
6.3VulDB CNACVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
9.8NIST NVDCVSS:3.1/AV:N/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.

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

No observations available

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

Weakness, pattern, technique

CWE-77Improper Neutralization of Special Elements used in a Command ('Command Injection')
CWE-74Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
T1059.004Command and Scripting Interpreter: Unix Shell

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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