CVE-2026-106177 in Sure Click
Summary
by MITRE • 10/08/2026
A kernel buffer overflow vulnerability in HP Sure Click versions prior to 4.4.33 may allow local privilege escalation or arbitrary code execution. HP has released version 4.4.33 to address this vulnerability.
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Analysis
by VulDB Data Team • 10/08/2026
The identified vulnerability represents a critical security flaw within the HP Sure Click software suite, specifically affecting versions preceding build 4.4.33. This issue is classified as a kernel buffer overflow, which indicates that the defect resides in the operating system's core memory management structures rather than solely in user-space applications. Kernel-level vulnerabilities are particularly severe because successful exploitation grants an attacker direct access to ring zero privileges, effectively bypassing standard security boundaries and isolation mechanisms designed by HP Sure Click itself. The presence of this flaw undermines the foundational trust model upon which endpoint protection platforms rely, allowing malicious actors to subvert system integrity controls that are typically enforced at a higher privilege level.
From a technical perspective, buffer overflow vulnerabilities occur when a program writes more data to a fixed-length block of memory than it is allocated to hold. In the context of kernel modules or drivers associated with HP Sure Click, this likely stems from insufficient bounds checking during input validation processes. When an attacker can control the size and content of the input data passed to these vulnerable functions, they can overwrite adjacent memory locations containing critical return addresses or function pointers. This manipulation allows for arbitrary code execution within the context of the operating system kernel. The specific impact includes local privilege escalation, where a low-privileged user account gains administrative rights, and potentially remote code execution if the vulnerability is triggered by network-accessible services or scheduled tasks initiated by other compromised components.
The operational impact of this vulnerability extends beyond simple unauthorized access. An attacker who exploits this flaw can disable security monitoring tools, install persistent backdoors, exfiltrate sensitive data without detection, or pivot to other systems on the internal network. Since HP Sure Click is designed to provide application isolation and threat prevention, its compromise effectively neutralizes a primary defense layer for many enterprise endpoints. This creates a significant risk vector in environments where users may inadvertently trigger the vulnerability through malicious documents, scripts, or compromised software that interacts with the protected components of the suite. The ability to escalate privileges locally means that even sandboxed applications could potentially break out and affect the host system if they interact with vulnerable interfaces exposed by HP Sure Click.
To mitigate this risk, organizations must prioritize immediate patching of all affected endpoints running versions prior to 4.4.33. It is essential to verify deployment status across the enterprise using centralized management consoles or endpoint detection and response tools that can inventory installed software versions. In addition to updating the software, administrators should review access controls and monitor for anomalous behavior indicative of exploitation attempts, such as unexpected privilege changes or unusual kernel module loads. Implementing strict application whitelisting policies alongside HP Sure Click can further reduce the attack surface by preventing unauthorized binaries from executing code that might trigger the vulnerability. Regular security audits and adherence to patch management cycles are critical to maintaining resilience against such high-severity flaws.
This vulnerability aligns with Common Weakness Enumeration identifier CWE-120, which describes buffer copy without checking size limits, a classic cause of memory corruption issues. Furthermore, from an adversary tactics perspective, exploitation would likely fall under the MITRE ATT&CK technique T1068, specifically relating to Exploitation for Privilege Escalation. Understanding these mappings helps security teams contextualize the threat within broader attack frameworks and prioritize remediation efforts based on potential impact rather than just severity scores. Continuous monitoring and proactive vulnerability management are essential to prevent adversaries from leveraging such kernel-level flaws to compromise organizational infrastructure.