CVE-2026-49006 in F689
Summary
by MITRE • 08/07/2026
By accessing unencrypted information in the device firmware, an attacker can obtain credentials related to TLS transmission.
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Analysis
by VulDB Data Team • 08/07/2026
This vulnerability represents a critical weakness in device firmware security that allows attackers to extract sensitive authentication credentials through unencrypted data exposure. The flaw typically manifests when cryptographic keys, certificates, or authentication tokens are stored in plaintext within firmware images without proper encryption mechanisms. Such exposures create opportunities for adversaries to perform firmware analysis and extract credentials that would normally be protected during TLS transmission processes. The vulnerability aligns with CWE-312 (Cleartext Storage of Sensitive Information) and represents a fundamental failure in secure boot and firmware design principles. Attackers can leverage this weakness through various methods including physical device access, firmware dumping techniques, or network-based reconnaissance that targets exposed firmware components. The operational impact extends beyond simple credential theft to encompass potential man-in-the-middle attacks, unauthorized access to encrypted communications, and broader system compromise. When TLS credentials are exposed in cleartext, attackers can impersonate legitimate devices, decrypt intercepted communications, and establish persistent access points within network environments. This weakness particularly affects IoT devices, embedded systems, and network infrastructure where firmware security is often overlooked during development cycles. The vulnerability demonstrates characteristics consistent with ATT&CK technique T1005 (Data from Local System) and T1021.004 (SSH) when combined with privilege escalation or lateral movement capabilities. Organizations implementing such vulnerable firmware face significant risks including regulatory compliance violations under standards like pci dss, iso 27001, and nist cyber security framework. The technical exploitation requires minimal sophistication once the firmware is accessible, making this attack vector particularly dangerous for environments where physical security controls are insufficient. Mitigation strategies should focus on implementing secure firmware encryption, employing hardware security modules for key storage, regular firmware integrity checks, and establishing robust access controls for firmware update processes. Additionally, organizations must adopt comprehensive supply chain security measures to prevent introduction of vulnerable firmware components during deployment phases.