Is this vulnerability remotely exploitable?

Yes. If the WebSocket authentication endpoint is reachable over a network (e.g., the internet or a shared corporate network), an attacker can exploit it remotely by sending large numbers of authentication attempts.

What level of access does an attacker need to exploit this?

The attacker only needs network access to the WebSocket API; they do not require valid credentials. Exploitation can begin with unauthenticated requests.

What is the safest general fix pattern for this issue?

Introduce robust rate limiting and lockout mechanisms around authentication, ideally enforced at both the application and gateway levels, and ensure that repeated failures trigger throttling, backoff, or additional verification.

Severity:

HIGH RISK

(7.5)

Improper Authentication Rate Limiting (CWE-307) in WebSocket API for Charger Telemetry

CVE-2026-20882

Published:

Mar 6, 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-77;CWE-78

CRITICAL RISK

CRITICAL

(9.8)

OS Command Injection (CWE-78) in Totolink A7100RU CGI Handler setAccessDeviceCfg

Remote Code Execution on the Router

April 12, 2026

CWE-77;CWE-78

CRITICAL RISK

CRITICAL

(9.8)

OS Command Injection (CWE-78) in Totolink A7100RU CGI setLedCfg Handler

Remote Code Execution on the Router

April 12, 2026

Vulnerability Type

Category:

Improper Authentication Rate Limiting

CWE:

CWE-307

Impact:

Denial of Service and Unauthorized Access

Severity:

HIGH RISK

(7.5)

CVSS Version:

3.1

Vulnerability Type

Category:

Improper Authentication Rate Limiting

CWE:

CWE-307

Impact:

Denial of Service and Unauthorized Access

Severity:

HIGH RISK

(7.5)

CVSS Version:

3.1

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Ask AI for summary of CodeAnt

Improper Authentication Rate Limiting (CWE-307) in WebSocket API for Charger Telemetry

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

CRITICAL RISK

CRITICAL

(9.8)

OS Command Injection (CWE-78) in Totolink A7100RU CGI Handler setAccessDeviceCfg

CRITICAL RISK

CRITICAL

(9.8)

OS Command Injection (CWE-78) in Totolink A7100RU CGI setLedCfg Handler

Vulnerability Type

Vulnerability Type

Vulnerability Type

Catch This CVE While Code Is Being Written

Ship clean & secure code faster

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