Ameeba Security Research

Defensive CVE and exploit intelligence

Ameeba Blog Search
TRENDING · 1 WEEK
Attack Vector
Vendor
Severity

CVE-2025-55619: Hardcoded Encryption Key Vulnerability in Reolink v4.54.0.4.20250526

Views: 378

Overview

The Common Vulnerabilities and Exposures (CVE) system has recently documented a critical security flaw in Reolink v4.54.0.4.20250526, labeled CVE-2025-55619. This vulnerability involves the use of a hardcoded encryption key and initialization vector within the software, posing serious security concerns to any systems or networks running this version of the software. The severity of this issue is underscored by its ability to compromise system security and potentially lead to unauthorized access or data leakage.
This vulnerability affects all users of the Reolink v4.54.0.4.20250526 software, and its implications are vast. Given that an attacker can leverage this flaw to decrypt access tokens and web session tokens, the vulnerability presents a significant risk to the confidentiality, integrity, and availability of affected systems.

Vulnerability Summary

CVE ID: CVE-2025-55619
Severity: Critical (9.8)
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: Potential system compromise and data leakage

Affected Products

Ameeba Chat Icon Share secrets securely

Ameeba is private infrastructure for communication and sensitive work built on encrypted identity instead of exposed corporate identity systems.

Passwords, credentials, confidential files, screenshots, internal discussions, sensitive AI context, and private coordination should not become exposed across ordinary communication platforms.

  • • Encrypted identity
  • • Private Spaces for organizations and teams
  • • End-to-end encrypted chat, calls, files, and notes
  • • Sensitive AI work and protected collaboration
  • • Built for information that cannot leak

Our mission is to secure human work alongside AI.

Product | Affected Versions

Reolink | v4.54.0.4.20250526

How the Exploit Works

The vulnerability stems from the presence of hardcoded encryption keys and initialization vectors in the Reolink software. These hardcoded keys can be discovered via reverse engineering of the software’s codebase. Once these keys are known, an attacker can decrypt access tokens and web session tokens that are stored within the app. This decrypted information can be used to gain unauthorized access to the system or to extract sensitive data.

Conceptual Example Code

Below is a conceptual representation of how an attacker might exploit this vulnerability:

# Reverse engineering the app to extract the hardcoded encryption key and IV
$ reverse_engineer -app Reolink_v4.54.0.4.20250526 -extract_keys
# Using the extracted keys to decrypt a captured web session token
$ decrypt -key extracted_key -iv extracted_iv -input captured_web_session_token

This example assumes that the attacker has already captured a web session token from network traffic, which they then decrypt using the extracted encryption key and initialization vector.

Recommended Mitigation

Users affected by this vulnerability are advised to apply the vendor patch as soon as it becomes available. In the interim, implementing a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can help mitigate the risk of exploitation. Regularly reviewing and updating security measures is also recommended to maintain system integrity against emerging threats.

Want to discuss this further? Join the Ameeba Cybersecurity Group Chat.

Disclaimer:

The information and code presented in this article are provided for educational and defensive cybersecurity purposes only. Any conceptual or pseudocode examples are simplified representations intended to raise awareness and promote secure development and system configuration practices.

Do not use this information to attempt unauthorized access or exploit vulnerabilities on systems that you do not own or have explicit permission to test.

Ameeba and its authors do not endorse or condone malicious behavior and are not responsible for misuse of the content. Always follow ethical hacking guidelines, responsible disclosure practices, and local laws.

More posts

Ameeba Chat