Vulnerability Database / CVE-2026-20700 CVE-2026-20700: Apple iPadOS RCE Vulnerability CVE-2026-20700 is a memory corruption vulnerability in Apple iPadOS that enables remote code execution through memory write capabilities. This article covers technical details, affected versions, exploitation risks, and patches. Published : February 13, 2026 CVE-2026-20700 Overview A critical memory corruption vulnerability has been identified in Apple's operating systems that allows attackers with memory write capability to execute arbitrary code. This issue, addressed through improved state management, affects the core memory handling mechanisms across Apple's entire ecosystem of devices including iPhones, iPads, Macs, Apple TVs, Apple Watches, and Vision Pro headsets. The vulnerability is particularly concerning as Apple has acknowledged awareness of reports indicating this issue may have been actively exploited in extremely sophisticated attacks against specific targeted individuals running iOS versions prior to iOS 26. This vulnerability was disclosed alongside two related CVEs (CVE-2025-14174 and CVE-2025-43529), suggesting a coordinated attack chain used in real-world targeted surveillance operations. Critical Impact This memory corruption vulnerability enables arbitrary code execution and has been confirmed exploited in the wild against targeted individuals. CISA has added this to the Known Exploited Vulnerabilities catalog, requiring immediate remediation. Affected Products Apple iOS and iPadOS (versions prior to 26.3) Apple macOS Tahoe (versions prior to 26.3) Apple watchOS (versions prior to 26.3) Apple tvOS (versions prior to 26.3) Apple visionOS (versions prior to 26.3) Discovery Timeline 2026-02-11 - CVE-2026-20700 published to NVD 2026-02-12 - Last updated in NVD database Technical Details for CVE-2026-20700 Vulnerability Analysis CVE-2026-20700 is a memory corruption vulnerability (CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer) that stems from improper state management in Apple's operating system kernels. The flaw allows an attacker who has already gained memory write capability to corrupt memory structures in a way that enables arbitrary code execution with elevated privileges. The vulnerability affects the shared kernel components across Apple's entire device ecosystem, which explains why all major Apple operating systems are impacted. The local attack vector means an attacker would first need to establish some level of access to the target device, potentially through a malicious application or chained with another vulnerability to gain initial memory write access. What makes this vulnerability particularly dangerous is its confirmed exploitation in targeted attacks. Apple's acknowledgment that this was used in "extremely sophisticated attacks against specific targeted individuals" suggests the involvement of advanced threat actors, potentially nation-state level adversaries or commercial spyware vendors. The coordinated disclosure with CVE-2025-14174 and CVE-2025-43529 indicates this was likely part of a multi-stage exploit chain used in surveillance operations. Root Cause The root cause of CVE-2026-20700 lies in improper state management within memory handling routines. When memory operations occur, the system failed to properly track and validate the state of memory buffers, allowing an attacker with write access to manipulate memory in unintended ways. This state management deficiency enabled memory corruption that could be weaponized for code execution. Apple addressed the vulnerability through "improved state management," which typically involves adding proper validation checks, implementing state tracking mechanisms, and ensuring memory operations cannot be performed in inconsistent or dangerous states. Attack Vector The attack vector for CVE-2026-20700 requires local access to the target device. An attacker must first obtain memory write capability, which could be achieved through: A malicious application installed on the device Chaining with another vulnerability that provides initial memory access Physical access to an unlocked device Exploitation of another remote vulnerability to gain initial foothold Once memory write capability is established, the attacker can exploit the improper state management to corrupt memory structures, bypass security controls, and execute arbitrary code. Given the sophisticated nature of the observed attacks, this vulnerability was likely combined with other exploits in a chain to achieve remote code execution starting from a zero-click or one-click attack vector. The involvement of related CVEs (CVE-2025-14174 and CVE-2025-43529) suggests attackers used multiple vulnerabilities in sequence to achieve their objectives, a technique commonly employed in advanced spyware deployments. Detection Methods for CVE-2026-20700 Indicators of Compromise Unusual system crashes or unexpected device reboots that may indicate memory corruption at