An out-of-bounds read was addressed with improved bounds checking. This issue is fixed in iOS 26.5 and iPadOS 26.5, macOS Sequoia 15.8.2, macOS Tahoe 26.5, tvOS 26.5, visionOS 26.5, watchOS 26.5. An app may be able to cause a denial-of-service.

The remote host is running a version of macOS / Mac OS X that is 15.x prior to 15.8.2. It is, therefore, affected by multiple vulnerabilities:

  - A logging issue was addressed with improved data redaction. This issue is fixed in iOS 26.3 and iPadOS     26.3, macOS Tahoe 26.3, tvOS 26.3, watchOS 26.3. A user may be able to view sensitive user information.
    (CVE-2026-20649)

  - A privacy issue was addressed by moving sensitive data to a protected location. This issue is fixed in     macOS Tahoe 26.3. A malicious app may be able to access notifications from other iCloud devices.
    (CVE-2026-20648)

  - This issue was addressed with improved permissions checking. This issue is fixed in iOS 18.7.7 and iPadOS     18.7.7, iOS 26.4 and iPadOS 26.4, macOS Sequoia 15.7.5, macOS Sonoma 14.8.5, macOS Tahoe 26.4, visionOS     26.4, watchOS 26.4. A local attacker may gain access to user's Keychain items. (CVE-2026-28864)

  - An out-of-bounds read was addressed with improved bounds checking. This issue is fixed in iOS 26.5 and     iPadOS 26.5, macOS Tahoe 26.5, tvOS 26.5, visionOS 26.5, watchOS 26.5. An app may be able to cause a     denial-of-service. (CVE-2026-28991)

  - A buffer overflow was addressed with improved bounds checking. This issue is fixed in macOS Sequoia     15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.6. A remote attacker may be able to cause unexpected system     termination or corrupt kernel memory. (CVE-2026-64767)

Note that Nessus has not tested for these issues but has instead relied only on the operating system's self-reported version number.

The version of Apple iOS running on the mobile device is prior to 26.5. It is, therefore, affected by multiple vulnerabilities.

The remote host is running a version of macOS / Mac OS X that is 26.x prior to 26.5. It is, therefore, affected by multiple vulnerabilities:

  - A specially-crafted file can cause libjxl's decoder to write pixel data to uninitialized unallocated     memory. Soon after that data from another uninitialized unallocated region is copied to pixel data. This     can be done by requesting color transformation of grayscale images to another grayscale color space.
    Buffers allocated for 1-float-per-pixel are used as if they are allocated for 3-float-per-pixel. That     happens only if LCMS2 is used as CMS engine. There is another CMS engine available (selected by build     flags). (CVE-2026-1837)

  - When doing multi-threaded LDAPS transfers (LDAP over TLS) with libcurl, changing TLS options in one thread     would inadvertently change them globally and therefore possibly also affect other concurrently setup     transfers. Disabling certificate verification for a specific transfer could unintentionally disable the     feature for other threads as well. (CVE-2025-14017)

  - When doing TLS related transfers with reused easy or multi handles and altering the     `CURLSSLOPT_NO_PARTIALCHAIN` option, libcurl could accidentally reuse a CA store cached in memory for     which the partial chain option was reversed. Contrary to the user's wishes and expectations. This could     make libcurl find and accept a trust chain that it otherwise would not. (CVE-2025-14819)

  - An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS     18.7.9 and iPadOS 18.7.9, macOS Sequoia 15.7.7, macOS Sonoma 14.8.7, macOS Tahoe 26.5. An app may be able     to execute arbitrary code with kernel privileges. (CVE-2026-28819)

  - A buffer overflow was addressed with improved bounds checking. This issue is fixed in iOS 18.7.9 and     iPadOS 18.7.9, iOS 26.5 and iPadOS 26.5, macOS Sequoia 15.7.7, macOS Sonoma 14.8.7, macOS Tahoe 26.5, tvOS     26.5, visionOS 26.5, watchOS 26.5. A remote attacker may be able to cause unexpected app termination.
    (CVE-2026-28846)

Note that Nessus has not tested for these issues but has instead relied only on the operating system's self-reported version number.

ID	Name	Product	Family	Type	Severity
372125	macOS 15.x < 15.8.2 Multiple Vulnerabilities (149523)	Nessus	MacOS X Local Security Checks	Local	critical
314173	Apple iOS < 26.5 Multiple Vulnerabilities (127110)	Nessus	Mobile Devices	Local	high
314172	macOS 26.x < 26.5 Multiple Vulnerabilities (127115)	Nessus	MacOS X Local Security Checks	Local	high

Detections

Analytics

CVE-2026-28991

high

Tenable Plugins

critical

high

high