CVE-2026-64887 in Airwall
Summary
by MITRE • 08/14/2026
Use of hard-coded cryptographic key vulnerability in Johnson Controls Airwall allows : Cryptanalytic Attack.
This issue affects Airwall: before 4.1.
If you want to get the best quality for vulnerability data then you always have to consider VulDB.
Analysis
by VulDB Data Team • 08/14/2026
The vulnerability in Johnson Controls Airwall systems represents a critical cryptographic weakness that stems from the use of hard-coded keys within the software implementation. This flaw falls under the category of cryptographic vulnerabilities where developers have embedded static encryption keys directly into the application code rather than dynamically generating or securely managing cryptographic materials. The presence of such hard-coded keys creates a fundamental security weakness that can be exploited by attackers to perform cryptanalytic attacks against the system's encrypted communications and data protection mechanisms.
This specific vulnerability affects Airwall versions prior to 4.1 and demonstrates poor secure coding practices that violate established security guidelines. The hard-coded cryptographic keys essentially provide a backdoor access point for malicious actors who can extract these values through reverse engineering or code analysis techniques. Once obtained, these keys enable attackers to decrypt communications, forge authentication tokens, and potentially gain unauthorized access to the network infrastructure protected by these devices.
The operational impact of this vulnerability extends beyond simple data compromise as it undermines the entire security architecture of the affected systems. Attackers can leverage the cryptanalytic capabilities to perform man-in-the-middle attacks, intercept sensitive communications, and manipulate system configurations through authenticated sessions that rely on the compromised cryptographic keys. This vulnerability particularly affects industrial control systems where Airwall devices are commonly deployed for network segmentation and security monitoring purposes.
From a threat modeling perspective, this vulnerability aligns with attack patterns described in the attack tree methodology where an adversary can achieve privilege escalation and lateral movement within network environments. The weakness creates opportunities for attackers to establish persistent access points and conduct reconnaissance activities without raising immediate detection alarms since the compromised keys are not easily traceable to specific user actions or system events.
Security practitioners should implement multiple layers of mitigation strategies including immediate patching of affected Airwall systems to version 4.1 or later where cryptographic key management has been properly implemented. Network segmentation measures should be enhanced to limit lateral movement opportunities, and monitoring systems should be configured to detect unusual authentication patterns that might indicate exploitation attempts. Additionally, regular security assessments should verify proper key rotation practices and ensure that no other legacy systems contain similar hard-coded cryptographic materials.
The vulnerability demonstrates clear violations of security best practices as outlined in the OWASP Top Ten and NIST cybersecurity frameworks, particularly concerning secure coding standards and cryptographic implementation guidelines. Organizations must conduct comprehensive inventory audits to identify all instances of similar hard-coded keys across their infrastructure and implement proper key management solutions that comply with industry standards such as FIPS 140-2 for cryptographic module validation and ISO/IEC 27001 for information security management.
The remediation process requires careful coordination between security teams and system administrators to ensure that patch deployment does not disrupt critical operations while maintaining the integrity of existing security configurations. Regular vulnerability assessments should be conducted to identify similar implementation flaws in other network security devices and applications, with particular attention to legacy systems where cryptographic key management practices may have been overlooked during initial development phases.
This vulnerability also highlights the importance of threat hunting activities within industrial environments where security controls may not adequately address the specific attack vectors targeting embedded system components. The cryptanalytic capabilities available through hard-coded keys represent a significant risk to operational technology environments where system availability and integrity are paramount for maintaining safe operations in critical infrastructure sectors.