What is the CVSS score of CVE-2023-51123?

CVE-2023-51123 has a CVSS 3.1 base score of 9.8 (Critical). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 49.6%.

Which versions of Dir 815 Firmware are affected by CVE-2023-51123?

CVE-2023-51123 presents critical security risk, a OS command injection vulnerability rated CVSS 9.8.

Is there a public PoC exploit available for CVE-2023-51123?

Yes, a public proof-of-concept exploit is available for CVE-2023-51123. Prioritise patching immediately. EPSS: 49.6%.

How to fix or mitigate CVE-2023-51123?

Within 24 hours: Identify all affected systems and apply vendor patches immediately. Validate that input sanitization is in place for all user-controlled parameters.

Dir 815 Firmware CVE-2023-51123

CRITICAL

OS Command Injection (CWE-78)

2024-01-10 cve@mitre.org

Command Injection RCE D-Link Dir 815 Firmware

9.8

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

9.8 CRITICAL

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

Analysis Generated

Mar 28, 2026 - 19:34 vuln.today

PoC Detected

Jun 20, 2025 - 16:15 vuln.today

Public exploit code

CVE Published

Jan 10, 2024 - 22:15 nvd

CRITICAL 9.8

DescriptionCVE.org

AnalysisAI

An issue discovered in D-Link dir815 v.1.01SSb08.bin allows a remote attacker to execute arbitrary code via a crafted POST request to the service parameter in the soapcgi_main function of the cgibin. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and EPSS exploitation probability 49.6%.

Technical ContextAI

This vulnerability is classified as OS Command Injection (CWE-78), which allows attackers to execute arbitrary operating system commands on the host. An issue discovered in D-Link dir815 v.1.01SSb08.bin allows a remote attacker to execute arbitrary code via a crafted POST request to the service parameter in the soapcgi_main function of the cgibin binary component. Affected products include: Dlink Dir-815 Firmware.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Avoid passing user input to shell commands. Use language-specific APIs instead of shell execution. Apply strict input validation with allowlists.