CVE-2026-58844 in Android
Summary
by MITRE • 11/02/2026
In multiple locations, there is a possible out of bounds read/write due to an incorrect bounds check. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.
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Analysis
by VulDB Data Team • 11/02/2026
The vulnerability described represents a critical memory safety flaw characterized by improper boundary validation within the application logic, leading to out-of-bounds read or write operations. In software engineering, such errors typically arise when input data or internal pointers are processed without verifying that they remain within the allocated limits of a buffer or array. This specific defect allows an attacker to access memory locations outside the intended scope, which can result in reading sensitive information from adjacent memory regions or writing arbitrary data into unintended memory addresses. The absence of strict bounds checking is a fundamental design flaw that undermines the integrity and confidentiality guarantees provided by modern operating system security models.
From a technical perspective, out-of-bounds reads often facilitate information disclosure vulnerabilities where an attacker can leak stack cookies, heap metadata, or other process-specific secrets. This leakage significantly aids in bypassing memory protection mechanisms such as Address Space Layout Randomization (ASLR) and Stack Canaries. Conversely, out-of-bounds writes are particularly dangerous as they allow for arbitrary code execution by overwriting critical data structures like function pointers, return addresses, or object vtables. Since the vulnerability does not require user interaction to exploit, it implies that the flaw is triggered automatically upon processing specific inputs or during routine system operations, making it highly susceptible to automated exploitation techniques and remote attack vectors if reachable via network services.
The operational impact of this vulnerability is severe due to its potential for local privilege escalation. An attacker who gains initial access to the affected system can leverage this memory corruption flaw to execute code with elevated privileges, effectively taking control of the operating system kernel or high-privilege processes. This transition from unprivileged user context to root or SYSTEM level bypasses standard security controls and allows for complete compromise of the host environment. The lack of additional execution privileges needed further lowers the barrier to entry for attackers, enabling even low-level adversaries with minimal initial access to achieve full administrative control over the affected infrastructure.
This type of vulnerability aligns closely with Common Weakness Enumeration (CWE) identifiers such as CWE-125 Out-of-bounds Read and CWE-787 Out-of-bounds Write. These categories highlight the failure to validate input boundaries before accessing memory, a common root cause in C and C++ applications where manual memory management is prevalent. Furthermore, from an offensive security framework perspective, this vulnerability supports techniques associated with MITRE ATT&CK tactics such as Defense Evasion through Memory Protection Bypass and Privilege Escalation via Local Exploitation of Application Logic Flaws. The automatic trigger mechanism suggests it may be exploited in conjunction with other initial access vectors to rapidly escalate privileges within a compromised network segment.
Mitigation strategies must focus on both immediate remediation and long-term architectural improvements. Developers should implement rigorous input validation routines that strictly enforce boundary checks before any memory access operation occurs. Utilizing static analysis tools and fuzzing techniques during the software development lifecycle can help identify these logic errors early. For existing deployments, applying vendor-provided patches is essential to correct the underlying code defects. Additionally, deploying runtime application self-protection mechanisms or enabling advanced security features like Control Flow Integrity (CFI) and Full RELRO can mitigate the impact of such memory corruption vulnerabilities by detecting anomalous behavior at execution time and preventing exploitation attempts even if the flaw remains present in the binary.