CVE-2024-48153Network attack vector

Unauthenticated command execution via get_subconfig

Published Oct 14, 2024 · Updated Oct 17, 2024

Command injection in DrayTek Vigor3900 Firmware 1.5.1.3 allows remote attackers to execute arbitrary commands via mainfunction.cgi. The mainfunction.cgi get_subconfig handler accepts malicious command content and causes the device to execute it. No authentication or user interaction is required, and successful exploitation grants control over device operations and data.

CVSS severity9.8
Critical
EPSS probability0.68%
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 DrayTek Vigor3900 Firmware 1.5.1.3 allows remote attackers to execute arbitrary commands via mainfunction.cgi. The mainfunction.cgi get_subconfig handler accepts malicious command content and causes the device to execute it. No authentication or user interaction is required, and successful exploitation grants control over device operations and data.

The record

CVE
CVE-2024-48153
Published
Oct 14, 2024
Updated
Oct 17, 2024
Vendor
DrayTek
Product
Vigor3900 Firmware
Classifications
CWE-77, T1059
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 14, 2024CVE publishedPublication date reported by the CVE source.
  2. Oct 17, 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=1.5.1.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

DrayTek · Vigor3900 Firmwareversion=1.5.1.3

Published CVSS scores

9.8CISA-ADPCVSS: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.

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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)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-77Improper Neutralization of Special Elements used in a Command ('Command Injection')
T1059Command and Scripting Interpreter

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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