CVE-2023-44959Public exploitNetwork attack vector

Authenticated root code execution via unsanitized IP fields

Published Oct 10, 2023 · Updated Sep 18, 2024

Command injection in D-Link DSL-3782 firmware 1.03 and earlier allows remote authenticated users to execute arbitrary code as root. The network settings handler accepts metacharacters in Router IP Address fields, stores the values through cfg_manager, and interpolates them into a shell command passed to system(). Access to the web-based configuration interface and valid credentials are required; successful injection grants root-level command execution on the router.

CVSS severity8.8
High
EPSS probability20.52%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Command injection in D-Link DSL-3782 firmware 1.03 and earlier allows remote authenticated users to execute arbitrary code as root. The network settings handler accepts metacharacters in Router IP Address fields, stores the values through cfg_manager, and interpolates them into a shell command passed to system(). Access to the web-based configuration interface and valid credentials are required; successful injection grants root-level command execution on the router.

The record

CVE
CVE-2023-44959
Published
Oct 10, 2023
Updated
Sep 18, 2024
Vendor
D-Link Corporation
Product
D-Link DSL-3782 Firmware
Classifications
CWE-77, T1059.004
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 10, 2023CVE publishedPublication date reported by the CVE source.
  2. Sep 18, 2024Record 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=0 <=1.03

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

D-Link Corporation · D-Link DSL-3782 Firmwareversion=0 <=1.03

Published CVSS scores

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-77Improper Neutralization of Special Elements used in a Command ('Command Injection')
T1059.004Unix Shell

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo