Severity:

HIGH RISK

(8.8)

Arbitrary File Write / External Control of File Name or Path

CVE-2021-47871

Published:

Jan 21, 2026

Status:

Awaiting Analysis

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

NDV

Recent Vulnerabilities

CWE-74;CWE-94

HIGH RISK

HIGH

(7.3)

Code Injection (CWE-94) in ANTLR4 Grammar Action Block

Arbitrary Code Execution in Generated Artifacts

June 28, 2026

CWE-74;CWE-89

HIGH RISK

HIGH

(7.3)

SQL Injection (CWE-89) in Restaurant Password Reset

Authentication Data Exposure and Account Compromise

June 28, 2026

Vulnerability Type

Category:

Arbitrary File Write / External Control of File Name or Path

CWE:

CWE-73

Impact:

Privilege Escalation and Remote System Compromise

Severity:

HIGH RISK

(8.8)

CVSS Version:

3.1

Vulnerability Type

Category:

Arbitrary File Write / External Control of File Name or Path

CWE:

CWE-73

Impact:

Privilege Escalation and Remote System Compromise

Severity:

HIGH RISK

(8.8)

CVSS Version:

3.1

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From first line of code to a pentest that knows every line of it.

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Defensive + offensive security.

From first line of code to a pentest that knows every line of it.

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Arbitrary File Write / External Control of File Name or Path

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

Recent Vulnerabilities

HIGH RISK

HIGH

(7.3)

Code Injection (CWE-94) in ANTLR4 Grammar Action Block

HIGH RISK

HIGH

(7.3)

SQL Injection (CWE-89) in Restaurant Password Reset

Vulnerability Type

Vulnerability Type

Vulnerability Type

Catch This CVE While Code Is Being Written

Ship clean & secure code faster

Ship clean & secure code faster

Ship clean & secure code faster

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