CVE-2023-0127Public exploit

Authenticated root command execution via firmware argument injection

Published Feb 11, 2023 · Updated Mar 24, 2025

Command injection in D-Link DWL-2600AP firmware 4.2.0.17 allows remote authenticated users to execute arbitrary commands as root. The restricted-shell firmware-upgrade command accepts shell metacharacters in its argument, causing BusyBox ash to interpret an embedded command instead of treating it as data. A valid account and access to the standalone-mode CLI over Telnet, SSH, or a console are required; successful exploitation grants unrestricted root-shell control.

CVSS severity6.8
Medium
EPSS probability1.98%
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 D-Link DWL-2600AP firmware 4.2.0.17 allows remote authenticated users to execute arbitrary commands as root. The restricted-shell firmware-upgrade command accepts shell metacharacters in its argument, causing BusyBox ash to interpret an embedded command instead of treating it as data. A valid account and access to the standalone-mode CLI over Telnet, SSH, or a console are required; successful exploitation grants unrestricted root-shell control.

The record

CVE
CVE-2023-0127
Published
Feb 11, 2023
Updated
Mar 24, 2025
Vendor
D-Link
Product
DWL-2600AP
Classifications
CWE-77, CAPEC-248, T1059.004, T1059.008
Attack vector
adjacent
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 11, 2023CVE publishedPublication date reported by the CVE source.
  2. Mar 24, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=DWL-2600AP with firmware version v.4.2.0.17

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesauthenticated

What is affected?

D-Link · DWL-2600APversion=DWL-2600AP with firmware version v.4.2.0.17

Published CVSS scores

7.8NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.8CISA-ADPCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
6.8TenableCVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
6.4TenableCVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:C

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)
Vectoradjacent
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-77Improper Neutralization of Special Elements used in a Command ('Command Injection')
CAPEC-248Command Injection
T1059.004Command and Scripting Interpreter: Unix Shell
T1059.008Command and Scripting Interpreter: Network Device CLI

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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