CVE-2024-24326Public exploitNetwork attack vector

Unauthenticated command execution via arpEnable command splicing

Published Jan 30, 2024 · Updated Aug 29, 2024

OS command injection in TOTOLINK A3300R 17.0.0cu.557_B20221024 allows remote attackers to execute arbitrary commands via arpEnable. The setStaticDhcpRules handler passes arpEnable to Uci_Set_Str, which splices it into a UCI command that CsteSystem sends to execv. The published assessment requires no prior privileges, and the demonstrated request writes command output into the router's web root.

CVSS severity9.8
Critical
EPSS probability1.64%
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 A3300R 17.0.0cu.557_B20221024 allows remote attackers to execute arbitrary commands via arpEnable. The setStaticDhcpRules handler passes arpEnable to Uci_Set_Str, which splices it into a UCI command that CsteSystem sends to execv. The published assessment requires no prior privileges, and the demonstrated request writes command output into the router's web root.

The record

CVE
CVE-2024-24326
Published
Jan 30, 2024
Updated
Aug 29, 2024
Vendor
TOTOLINK
Product
A3300R
Classifications
CWE-78, T1190, T1059.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 30, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 29, 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=17.0.0cu.557_B20221024

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

TOTOLINK · A3300Rversion=17.0.0cu.557_B20221024

Published CVSS scores

9.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
T1190Exploit Public-Facing Application
T1059.004Unix 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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