What is the CVSS score of CVE-2020-16257?

CVE-2020-16257 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: 3.7%.

Is there a public PoC exploit available for CVE-2020-16257?

Yes, a public proof-of-concept exploit is available for CVE-2020-16257. Prioritise patching immediately. EPSS: 3.7%.

Winston Firmware CVE-2020-16257

CRITICAL

OS Command Injection (CWE-78)

2020-10-28 cve@mitre.org

Command Injection Winston 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

CVE Published

Oct 28, 2020 - 17:15 nvd

CRITICAL 9.8

DescriptionNVD

Winston 1.5.4 devices are vulnerable to command injection via the API.

AnalysisAI

Winston 1.5.4 devices are vulnerable to command injection via the API. 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. Winston 1.5.4 devices are vulnerable to command injection via the API. Affected products include: Winstonprivacy Winston 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.