What is the CVSS score of CVE-2025-29040?

CVE-2025-29040 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: 7.2%.

Which versions of Dir 823x Firmware are affected by CVE-2025-29040?

CVE-2025-29040 presents critical security risk, a OS command injection vulnerability rated CVSS 9.8.

Is there a public PoC exploit available for CVE-2025-29040?

Yes, a public proof-of-concept exploit is available for CVE-2025-29040. Prioritise patching immediately. EPSS: 7.2%.

How to fix or mitigate CVE-2025-29040?

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 823x Firmware CVE-2025-29040

CRITICAL

OS Command Injection (CWE-78)

2025-04-17 cve@mitre.org

D-Link Command Injection RCE Dir 823x 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 - 18:37 vuln.today

PoC Detected

May 01, 2025 - 18:15 vuln.today

Public exploit code

CVE Published

Apr 17, 2025 - 15:15 nvd

CRITICAL 9.8

DescriptionCVE.org

An issue in dlink DIR 823x 240802 allows a remote attacker to execute arbitrary code via the target_addr key value and the function 0x41737c

AnalysisAI

An issue in dlink DIR 823x 240802 allows a remote attacker to execute arbitrary code via the target_addr key value and the function 0x41737c. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

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 in dlink DIR 823x 240802 allows a remote attacker to execute arbitrary code via the target_addr key value and the function 0x41737c Affected products include: Dlink Dir-823X 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.

CVE-2025-29040 vulnerability details – vuln.today

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Dir 823x Firmware CVE-2025-29040

Severity by source

CVSS VectorNVD

Lifecycle Timeline

DescriptionCVE.org

AnalysisAI

Technical ContextAI

RemediationAI

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External POC / Exploit Code