PT-2026-39819 · Apple · Macos Sonoma+8

Suresh Sundaram · Published 2026-05-11 · Updated 2026-05-11 · CVE-2026-28977

Positive Technologies (AI Summary)

CVSS v3.1

6.2

Medium

Base vector

AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions iOS versions prior to 18.7.9 iPadOS versions prior to 18.7.9 iOS versions prior to 26.5 iPadOS versions prior to 26.5 macOS Sequoia versions prior to 15.7.7 macOS Sonoma versions prior to 14.8.7 macOS Tahoe versions prior to 26.5 tvOS versions prior to 26.5 visionOS versions prior to 26.5 watchOS versions prior to 26.5

Description Processing a maliciously crafted file may lead to unexpected app termination. This issue is caused by insufficient bounds checks, which are verification processes that ensure a program does not access memory outside the boundaries of a predefined buffer.

Recommendations Update to iOS 18.7.9 Update to iPadOS 18.7.9 Update to iOS 26.5 Update to iPadOS 26.5 Update to macOS Sequoia 15.7.7 Update to macOS Sonoma 14.8.7 Update to macOS Tahoe 26.5 Update to tvOS 26.5 Update to visionOS 26.5 Update to watchOS 26.5

Fix

Buffer Overflow

Weakness Enumeration

CWE-119

Related Identifiers

CVE-2026-28977

Affected Products

Apple Macos

Ios

Ipados

Macos Sequoia

Macos Sonoma

Macos Tahoe

Tvos

Visionos

Watchos

References · 10

• https://nvd.nist.gov/vuln/detail/CVE-2026-28977 · Security Note
• https://support.apple.com/en-us/127118 · Note
• https://support.apple.com/en-us/127119 · Note
• https://support.apple.com/en-us/127111 · Note
• https://support.apple.com/en-us/127115 · Note
• https://support.apple.com/en-us/127116 · Note
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-28977 · Note
• https://support.apple.com/en-us/127117 · Note
• https://support.apple.com/en-us/127110 · Note
• https://support.apple.com/en-us/127120 · Note