CVE-2026-65349: 
macOS Analyse et atténuation des vulnérabilités

CVE-2026-65349 is a kernel out-of-bounds read vulnerability in Apple iOS, iPadOS, and macOS caused by insufficient input validation. Reported by an anonymous researcher, it was disclosed and patched on August 17, 2026. Affected versions include iOS and iPadOS prior to 26.6.1, and macOS Tahoe prior to 26.6.2. The vulnerability is estimated as Medium severity; no official CVSS score has been published at this time, and the EPSS score is 0.0 (Apple Advisory iOS, Apple Advisory macOS, Github Advisory).

The vulnerability is classified as an out-of-bounds read (CWE-125) in the Apple kernel component, resulting from improper input validation when processing certain inputs. A malicious app running on the device can trigger the out-of-bounds read without requiring elevated privileges or user interaction beyond installing and running the app. Apple addressed the issue by implementing improved input validation in the affected kernel code path. No public technical write-up or proof-of-concept code has been identified (Apple Advisory iOS, Apple Advisory macOS).

Successful exploitation allows a malicious app to either cause unexpected system termination (denial of service) or read sensitive kernel memory contents, potentially exposing privileged data such as cryptographic material, process information, or other in-memory secrets. The kernel memory disclosure could be leveraged as a stepping stone in a more complex exploit chain to bypass security mitigations such as KASLR. The impact is limited to the affected device; however, kernel memory exposure may facilitate further privilege escalation or lateral movement within a compromised environment (Apple Advisory iOS, Apple Advisory macOS).

There is no evidence of active in-the-wild exploitation or a publicly available proof-of-concept for CVE-2026-65349 at this time. The vulnerability has not been added to the CISA Known Exploited Vulnerabilities (KEV) catalog. The EPSS score is 0.0, reflecting a currently low probability of exploitation in the near term. Exploitation requires the attacker to have an app running on the target device, which limits the attack surface compared to remote or zero-click vulnerabilities (Apple Advisory iOS, Github Advisory).

Apple has released patches addressing this vulnerability: update iOS and iPadOS devices to version 26.6.1 or later, and macOS Tahoe to version 26.6.2 or later. No configuration-based workarounds have been published; upgrading to the patched versions is the only recommended remediation. Organizations should prioritize patching devices that may run untrusted third-party applications, as exploitation requires a malicious app to be present on the device (Apple Advisory iOS, Apple Advisory macOS).

The vulnerability was noted in broader coverage of Apple's August 17, 2026 security update, which addressed over 120 flaws across iOS, iPadOS, and macOS (Cyberkendra). The SANS Internet Storm Center also referenced the update (SANS ISC). No significant individual researcher commentary or notable social media discussion specific to CVE-2026-65349 has been identified beyond routine vulnerability tracking.