EUVD-2026-15070
GHSA-53m2-g697-36jw
Vulnerability Assessment
| Impact | Without a published CVSS score or EPSS probability, risk assessment must rely on contextual signals. The vulnerability is classified as information disclosure rather than code execution, which typically carries lower severity. However, kernel memory layout disclosure is a high-value primitive for attackers: it breaks KASLR, a critical mitigation against kernel exploits, and enables chaining with other vulnerabilities to achieve kernel code execution. The fact that Apple patched this across three concurrent OS versions (Sequoia, Sonoma, and Tahoe) indicates it was treated as a genuine security issue warranting coordinated updates. No public POC, active exploitation in KEV, or EPSS data suggests this is not actively exploited in the wild as of the patch release, making it a lower-priority tactical issue but a strategically important defensive patch. Organizations should prioritize patching to prevent future kernel exploits that depend on KASLR bypass. |
| Exploit ScenarioDerived | An attacker develops a malicious application that triggers specific memory access patterns or timing variations to infer kernel memory addresses, bypassing KASLR protections. Once deployed on a victim's macOS system (either through social engineering or app store compromise), the app exfiltrates kernel base address information to the attacker's server. The attacker then uses this information to craft a second-stage exploit targeting a known kernel vulnerability, achieving privilege escalation and full system compromise. The attack requires the user to run the malicious app but does not require administrator privileges, making distribution and exploitation relatively feasible. |
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Alert meAnalysisAIv1 – Mar 25, 2026
An information disclosure vulnerability in macOS allows applications to determine kernel memory layout through improper memory management, enabling potential attacks that rely on kernel address space layout randomization (KASLR) bypass. This issue affects macOS Sequoia (before 15.7.5), macOS Sonoma (before 14.8.5), and macOS Tahoe (before 26.4). An unprivileged application can exploit this to leak kernel memory addresses, which is a critical prerequisite for more sophisticated kernel exploitation attacks. No CVSS score, EPSS probability, or evidence of active exploitation in CISA KEV catalog has been published, though the vulnerability was patched by Apple across three major OS versions, suggesting it was discovered through responsible disclosure rather than in-the-wild exploitation.
RemediationAI
Update macOS Sequoia to version 15.7.5 or later, macOS Sonoma to version 14.8.5 or later, or macOS Tahoe to version 26.4 or later, depending on which release branch is in use. Security updates are available through System Preferences > General > Software Update on affected systems. Organizations should prioritize deployment of these patches within their standard macOS update windows, as they address a kernel-level information disclosure that could enable subsequent kernel exploitation attacks. No workarounds are available for this vulnerability; patching is the only remediation path. Verify patch application by confirming the updated OS version number in System Preferences > General > About after restart.
Affected VersionsENISA
Affected Packages
Source: OSV (Open Source Vulnerabilities)
Affects your stack
Affects 1 package in euvd
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Technical ContextAI · show details
This vulnerability resides in macOS kernel memory management subsystems and relates to information disclosure through side-channel or direct memory access patterns. The CVE references identify affected macOS versions across multiple release branches (Sequoia 15.7.5, Sonoma 14.8.5, and Tahoe 26.4) as documented in Apple security updates (support.apple.com/en-us/126794, 126795, 126796). While a specific CWE was not assigned in the CVE record, the vulnerability mechanism of 'determining kernel memory layout' aligns with CWE-200 (Information Exposure) and potentially CWE-208 (Observable Timing Discrepancy) or similar side-channel weaknesses. The root cause appears to be inadequate isolation or randomization of kernel memory addresses accessible to user-space applications, which is fundamental to KASLR defense mechanisms on modern operating systems.
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Severity by source
AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
Lifecycle Timeline
2DescriptionCVE.org
An information disclosure issue was addressed with improved memory management. This issue is fixed in macOS Sequoia 15.7.5, macOS Sonoma 14.8.5, macOS Tahoe 26.4. An app may be able to determine kernel memory layout.
Zero Day Initiative Advisories
Executive ViewAI
Organizations using An information disclosure should be aware of moderate risk from CVE-2026-20695 rated CVSS 6.2. Exploitation could compromise the security of affected deployments. Organizations should apply vendor updates when available and monitor for exploitation.
Apply vendor patch. If patching is delayed: restrict network access and enable monitoring.
Threat Intelligence Overview
NVD
CVE.org
EPSS
Vulnrichment
VulDB
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.
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