CVE-2024-51299Public exploitNetwork attack vector

Authenticated command execution via dumpSyslog injection

Published Oct 30, 2024 · Updated Oct 30, 2024

Command injection in DrayTek Vigor3900 firmware 1.5.1.3 allows remote authenticated users to execute arbitrary system commands. The dumpSyslog function in mainfunction.cgi places attacker-controlled input into a command context without adequate neutralization. Access to the management interface with low privileges is required, and successful exploitation grants command execution on the router.

CVSS severity8.8
High
EPSS probability0.61%
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 authenticated users to execute arbitrary system commands. The dumpSyslog function in mainfunction.cgi places attacker-controlled input into a command context without adequate neutralization. Access to the management interface with low privileges is required, and successful exploitation grants command execution on the router.

The record

CVE
CVE-2024-51299
Published
Oct 30, 2024
Updated
Oct 30, 2024
Vendor
DrayTek
Product
Vigor3900 Firmware
Classifications
CWE-77, T1059
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 30, 2024CVE publishedPublication date reported by the CVE source.
  2. Oct 30, 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 privilegesauthenticated

What is affected?

DrayTek · Vigor3900 Firmwareversion=1.5.1.3

Published CVSS scores

8.8CISA ADPCVSS: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.

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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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-77Improper Neutralization of Special Elements used in a Command ('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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