CVE-2024-42741Public exploitNetwork attack vector

Authenticated command execution via unchecked UCI parameters

Published Aug 12, 2024 · Updated Aug 13, 2024

OS command injection in TOTOLINK X5000R Firmware 9.1.0cu.2350_b20230313 allows remote authenticated users to execute arbitrary commands. The setL2tpServerCfg handler passes unvalidated port, password, encryption, and timeout values through Uci_set_str into an snprintf-built uci command that CsteSystem ultimately supplies to execv. Access requires a valid router session, after which crafted L2TP configuration values run commands with the management service's privileges.

CVSS severity8.8
High
EPSS probability1.17%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

OS command injection in TOTOLINK X5000R Firmware 9.1.0cu.2350_b20230313 allows remote authenticated users to execute arbitrary commands. The setL2tpServerCfg handler passes unvalidated port, password, encryption, and timeout values through Uci_set_str into an snprintf-built uci command that CsteSystem ultimately supplies to execv. Access requires a valid router session, after which crafted L2TP configuration values run commands with the management service's privileges.

The record

CVE
CVE-2024-42741
Published
Aug 12, 2024
Updated
Aug 13, 2024
Vendor
TOTOLINK
Product
TOTOLINK X5000R Firmware
Classifications
CWE-78, T1059
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 12, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 13, 2024Record 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=9.1.0cu.2350_b20230313

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

TOTOLINK · TOTOLINK X5000R Firmwareversion=9.1.0cu.2350_b20230313

Published CVSS scores

7.8CISA-ADPCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
8.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/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-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
T1059Command and Scripting Interpreter

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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