Is this vulnerability remotely exploitable?

Yes. If an attacker can induce a victim to use a session ID that the attacker controls or knows (for example, via pre-set cookies or crafted links), the attacker can later use that same ID to access the victim's authenticated session remotely.

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

The attacker needs the ability to influence or predict the victim's session identifier before the victim logs in, or to operate in a context where they can share or control the browser environment (such as on a shared or compromised device).

What is the safest general fix pattern for this issue?

The most robust pattern is to regenerate the session ID immediately after successful authentication (and on any privilege elevation), invalidating the old identifier so that pre-login sessions cannot be reused in an authenticated state.

Severity:

CRITICAL RISK

(9.1)

Session Fixation (CWE-384) in 66biolinks Authentication Flow

CVE-2025-69602

Published:

Jan 28, 2026

Status:

Analyzed

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

HIGH RISK

HIGH

(7.3)

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

Remote Code Execution on the Router

April 6, 2026

CWE-77;CWE-78

HIGH RISK

HIGH

(7.3)

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

Remote Code Execution on Router Firmware

April 6, 2026

Vulnerability Type

Category:

Session Management / Session Fixation

CWE:

CWE-384

Impact:

Account Takeover / Session Hijacking

Severity:

CRITICAL RISK

(9.1)

CVSS Version:

3.1

Vulnerability Type

Category:

Session Management / Session Fixation

CWE:

CWE-384

Impact:

Account Takeover / Session Hijacking

Severity:

CRITICAL RISK

(9.1)

CVSS Version:

3.1

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Ask AI for summary of CodeAnt

Session Fixation (CWE-384) in 66biolinks Authentication Flow

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)

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

HIGH RISK

HIGH

(7.3)

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

Vulnerability Type

Vulnerability Type

Vulnerability Type

Catch This CVE While Code Is Being Written

Ship clean & secure code faster

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