What is the CVSS score of CVE-2017-8220?

CVE-2017-8220 has a CVSS 3.0 base score of 9.9 (Critical). CVSS vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H. EPSS exploitation probability: 3.8%.

Is there a public PoC exploit available for CVE-2017-8220?

Yes, a public proof-of-concept exploit is available for CVE-2017-8220. Prioritise patching immediately. EPSS: 3.8%.

C2 Firmware CVE-2017-8220

CRITICAL

OS Command Injection (CWE-78)

2017-04-25 cve@mitre.org

TP-Link RCE Command Injection C2 Firmware C20I Firmware

9.9

CVSS 3.0 · NVD

Severity by source

NVD PRIMARY

9.9 CRITICAL

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Changed

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

CVE Published

Apr 25, 2017 - 20:59 cve.org

CRITICAL 9.9

DescriptionCVE.org

AnalysisAI

TP-Link C2 and C20i devices through firmware 0.9.1 4.2 v0032.0 Build 160706 Rel.37961n allow remote code execution with a single HTTP request by placing shell commands in a "host=" line within HTTP. Rated critical severity (CVSS 9.9), this vulnerability is remotely exploitable, 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. TP-Link C2 and C20i devices through firmware 0.9.1 4.2 v0032.0 Build 160706 Rel.37961n allow remote code execution with a single HTTP request by placing shell commands in a "host=" line within HTTP POST data. Affected products include: Tp-Link C2 Firmware, Tp-Link C20I 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.