What is the CVSS score of CVE-2021-23399?

CVE-2021-23399 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: 1.3%.

Is there a public PoC exploit available for CVE-2021-23399?

Yes, a public proof-of-concept exploit is available for CVE-2021-23399. Prioritise patching immediately. EPSS: 1.3%.

Wincred CVE-2021-23399

CRITICAL

OS Command Injection (CWE-78)

2021-06-28 report@snyk.io

Command Injection Wincred

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

Jun 28, 2021 - 08:15 nvd

CRITICAL 9.8

DescriptionNVD

This affects all versions of package wincred. If attacker-controlled user input is given to the getCredential function, it is possible for an attacker to execute arbitrary commands. This is due to use of the child_process exec function without input sanitization.

AnalysisAI

This affects all versions of package wincred. 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. This affects all versions of package wincred. If attacker-controlled user input is given to the getCredential function, it is possible for an attacker to execute arbitrary commands. This is due to use of the child_process exec function without input sanitization. Affected products include: Wincred Project Wincred.

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.