What is the CVSS score of CVE-2021-28143?

CVE-2021-28143 has a CVSS 3.1 base score of 8.0 (High). CVSS vector: CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 32.0%.

Is there a public PoC exploit available for CVE-2021-28143?

Yes, a public proof-of-concept exploit is available for CVE-2021-28143. Prioritise patching immediately. EPSS: 32.0%.

Is there a patch available for CVE-2021-28143?

Yes, a patch is available for CVE-2021-28143. Update the affected software to the latest version immediately.

Dir 841 Firmware CVE-2021-28143

HIGH

OS Command Injection (CWE-78)

2021-03-11 cve@mitre.org

D-Link Command Injection Dir 841 Firmware

8.0

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

8.0 HIGH

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

Attack Vector

Adjacent

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

CVE Published

Mar 11, 2021 - 22:15 nvd

HIGH 8.0

DescriptionNVD

/jsonrpc on D-Link DIR-841 3.03 and 3.04 devices allows authenticated command injection via ping, ping6, or traceroute (under System Tools).

AnalysisAI

/jsonrpc on D-Link DIR-841 3.03 and 3.04 devices allows authenticated command injection via ping, ping6, or traceroute (under System Tools). Rated high severity (CVSS 8.0), this vulnerability is low attack complexity. Public exploit code 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. /jsonrpc on D-Link DIR-841 3.03 and 3.04 devices allows authenticated command injection via ping, ping6, or traceroute (under System Tools). Affected products include: Dlink Dir-841 Firmware.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Avoid passing user input to shell commands. Use language-specific APIs instead of shell execution. Apply strict input validation with allowlists.