CVE-2026-20657

MEDIUM

iOS and iPadOS < 18.7.7 - Buffer Overflow via Maliciously Crafted File

Title source: llm
STIX 2.1

Description

A buffer overflow issue was addressed with improved memory handling. 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. Parsing a maliciously crafted file may lead to an unexpected app termination.

References (6)

Core 6

Scores

CVSS v3 6.5
EPSS 0.0054
EPSS Percentile 41.0%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-119 CWE-125 CWE-787
Status published
Products (9)
Apple/iOS and iPadOS < 18.7.7
Apple/iOS and iPadOS < 26.4
apple/ipados < 18.7.7
apple/iphone_os < 18.7.7
Apple/macOS < 14.8.5
Apple/macOS < 15.7.5
Apple/macOS < 26.4
apple/macos 14.0 - 14.8.5
Apple/visionOS < 26.4
Published Mar 25, 2026
Tracked Since Mar 25, 2026